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1

History of Hydroponics


Abdul Vasi Home Family/Gardening 2007-12-18
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Hydroponics is one way of growing plants without the help of any traditional methods. When it comes to gardening then one gets the idea that one need's an open space and proper tools that are used in gardening. Moreover a traditional gardening involves a lot of effort and money. However, when it comes to Hydroponics then each and every notion is changed. With Hydroponics Gardening you just need some plants that you want and a container where you can plant those. Hydroponics gardening is also known as Soiless Gardening. Therefore there are certain things which you need to take care for Hydroponics gardening.

The history of Hydroponics goes back to the ancient civilizations who unknowingly applied the science of Hydroponics. Well at that time they were not aware of the fact that what they are employing now will be regarded as one of the finest forms of gardening in the future. Amongst the ancient civilizations it was the Incas, the Egyptians, the Aztecs and the Babylonians which incorporated this method of gardening. With hydroponics gardening they not only planted small plants but also grew crops. They had literally brought farming in their homes. Thus with the passage of time this technology which was invented by our ancestors got recognition just a few centuries back.

It was during the 16th century when there was a need felt to protect the horticultural crops which were dying because of cold. Several techniques were devised but seldom any of them proved effective. Starting from bell jars, glass lanterns, hot beds and cold frames to low portable wooden frames that were covered with oiled paper of the 17th century, all these techniques were in vain. Various other techniques were also devised for fulfilling the same purpose. However, all of them were in vain.

It was only after the post World War II period when the interest in Hydroponics was strengthened. With the advent of plastics various procedures of Hydroponics were simplified. Now the plastics were used for the glazing purposes of Greenhouses. Apart from that the plastics were also used in making the growing beds. Earlier these beds were made of concrete. As plastics facilitated drip irrigation so it was greatly used for Hydroponics gardening. Though during 1973 Hydroponics gardening had to take the back seat as the oil prices hiked. Due to this the cost of CEA heating and cooling also increased manifolds. Thus people started avoiding Hydroponics gardening. However after 20 years people again started taking interest in Hydroponics and started establishing CEA/Hydroponics systems again.


2

Uses of Hydroponics


Ranbhir Home Family/Gardening 2007-04-30
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Hydroponics – “Soiless Agriculture” is useful in two main ways. First, many plant species grow more in less time and often are of higher quality. With the result, under certain environmental and economic conditions, hydroponics growing is more profitable and beneficial to the farmer. Second, by providing more controlled environment than growing in soil, the hydroponic techniques remove many unknowns from experiments.

When plants are grown hydroponically there are no soil-borne diseases, weeds to pull, or soil to till, and plants can be placed very close to one another. This allows producing a large amount of food in a small amount of space. Water-efficiency is one more feature of hydroponics as it uses closed loop systems or containers that re-circulate the water, and therefore requires only a small fraction of the water used in traditional farming.

The same qualities make hydroponics ideal for those who wish to grow plants with maximum density and maximum control over conditions. These qualities combine to make hydroponics useful wherever people wish to grow plants in a non-traditional manner. Science fiction writers have long speculated that hydroponics would allow space stations or spaceships to grow their own food.

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3

Hydroponics Schematic Plan


Ann Marier Home Family/Gardening 2007-04-22
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As it is rewarding, hydroponics is also a very delicate and soliciting system. Regardless of whether you're an amateur or professional, you will need at least some hydroponics schematic plans before you actually start the crop. You need to get an idea what the growing place will look like, what its maintenance necessities will be and how much further you will have to invest before you finally harvest the crop.

To get a picture of what a hydroponics system looks like, it is a good idea to turn to someone else who works in the field and see the real indoors culture. Yet, if that is not possible for you, try one of the hydroponics schematic plans available online.

Virtual growing rooms

Meeting the need of having a model starting point, many sites provide hydroponics schematic and detailed plans of a soilless growing system. One of the latest idea was that of organizing a virtual growing room where visitors interested in hydroponics can really see what it is like for themselves. Not only accurate images, but very professional explanations of the working parts come together with these virtual tours. Growing rooms on display online help increase interest in the soilless culture growing and increase the self-confidence and knowledge of the growing community.

You may be wondering why anyone would let you find out the secrets of a business, even by simply revealing the hydroponics schematic plan. It comes without saying that such plans are provided by companies that very often sell hydroponics equipment, and have a commercial interest in the business too. Or, they may want to promote some of the complete hydroponics plans online.

However, mention should be made that there are cases when such virtual growing rooms are displayed by environmental organizations in order to increase population awareness. All in all, regardless of such reasons, having a look at the hydroponics schematic rooms and plans is a terrific opportunity. Don't miss such a useful experience!

Small or large hydroponics schematic plans

The hydroponics schematic plans available on the Internet are applicable to different business sizes. Not any plan matches all types of growing systems, even there may be differences particularly in the type of irrigation you choose for your plants.

Many of the systems proposed online include designs that can be monitored from the distance in all respects, either nutrient solution concentration or environmental control over the small indoors garden. Then it is up to you what kind of hydroponics culture you want to grow.


4

Gardening: Hydroponics Gardening


Nicholas Tan Home Family/Gardening 2008-03-05
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Many gardeners are beginning to switch to Hydroponics gardening for many different reasons. These types of gardens are small and can easily be grown inside and are perfect for most vegetables, especially the red tomato. Also the equipment required for Hydroponics gardening is not expensive and they are relatively easy to manage.

Hydroponics gardening is the growing of plants without soil, in other words, “dirtless gardening”. There are many methods of Hydroponics gardening, most of which work better than regular soil gardening because it is easier to give the plant exactly what it needs when it needs it. Plants will only receive what you give them; therefore you will be able to regulate the pH, nutrients, nutrient strength, water amount, and light amount. This makes it imperative that you research the kind of plants you will be growing so you know what they need to survive.

Hydroponics gardening is only as difficult as you make it. It can be complicated if computers with sensors are used to control water cycles, nutrients, and light for the plants. However, it can also be as simple as a hand watered bucket with a single plant. The normal home Hydroponics system is usually made up of a few basic things: a growing tray, light (natural or artificial), a reservoir, a water controlled pump for watering (or some type of watering equipment), and some form of air pump to give oxygen to the nutrients.

The growing medium used in Hydroponics gardening can be any number of things, such as Rockwool, perlite, coconut fiber, gravel, sand, vermiculite, or even air. You can get instructions from a gardening store or online or buy separate parts and build your own. There are also kits already assembled for sale in gardening supply stores.

There are certain micro-nutrients that are necessary for healthy plant growth including magnesium, sulfur, calcium, cobalt, boron, iron, copper, manganese, and zinc. These nutrients are absolutely essential to plants and if missing could cause the food to not be as healthy and in some cases even cause health problems for those who eat it. It is very important that you use a quality fertilizer when Hydroponics gardening.

Another important aspect of Hydroponics gardening that must be closely regulated is the pH balance. When the pH balance varies the plants will lose the ability to absorb nutrients that it needs. The ease with which the pH in Hydroponics gardening is tested and controlled give it a huge advantage over regular dirt gardening.

Even though there are hundreds of different variations, Wick, Water Culture, Ebb and Flow, Drip, N.F.T., and Aeroponic are the six most basic types of Hydroponics gardening systems. Hydroponics gardening is easy, affordable, and you can have fresh produce, flowers, herbs & spices all year long!

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5

Hydroponics And Orchids


Nigel Howell Home Family/Gardening 2007-07-03
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Growing and caring for orchids is a very pleasurable experience for any enthusiast. There is however an alternative to growing orchids the traditional way and that is with hydroponics. Hydroponics allows you to grow crops and plants without soil or compost as the roots of the plants are placed in a mineral nutrient solution.

The Babylonians and Aztecs cultures grew plants without soil so technically they were using a form of hydroponics. Our technology and scientific knowledge has improved dramatically since the times of the Babylonians and Aztecs as well as our understanding of the benefits

In their natural environment, plants absorb mineral nutrients from soil when these nutrients dissolve in water. The level of our understanding of the required nutrients has enabled us to artificially introduce them into the plants water supply and as a result the soil is no longer required.

Please be aware that there is a difference between hydroponics and a soilless culture. Hydroponics is a type of soilless culture but other soilless cultures include sand and gravel.

There are many advantages using hydroponics which can be applied to the care of orchids.

No soil It should be obvious that you don t need to purchase any soil. No soil means that soil borne diseases are no longer an issue which reduces the need for pesticides.

No weeding required

Watering It is very difficult to under water an orchid but over watering is a very common problem. Hydroponics removes this headache and at the same time saves water.

Space Less space is required with hydroponics.

Light More of the plant is exposed to sunlight. Also, as more of the plant is exposed it is
possible to see the roots so identification on any problems is easier.

It s easy The system is very easy to set up and once set up it requires very little maintenance.

Growth The orchid is given the correct nutrients in the correct quantities which means more beautiful and healthy orchids can be grown.

There are obviously many advantages which hydroponics provides. It won t however solve all the problems faced by the orchid enthusiast. Greater flower yield isn t always guaranteed and the costs can sometimes be higher than when grown in soil.

Orchid enthusiasts should make an effort to at grow at least a few orchids using this method. They will be surprised at the ease of using hydroponics and it will only increase their knowledge and experience in the care of orchids.


6

Growing Hydroponics Strawberries.


Brian Sandifer Home Family/Gardening 2008-01-04
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The hydroponics system is a soil-less farming system. This system is
presently used to produce enormous amounts of produce, for commercial and individual consumption. This article will look at the production of strawberries with a hydroponics system. For a long time farmers applied methyl bromide in order to kill the soil diseases that is inherent with soil agriculture. But with hydroponics production the need for methyl bromide may soon become a thing of the past.However, in order to set up this system, initial financial commitment is necessary, but that initial investment is usually recovered and more. Strawberries are quite popular with consumers. More so,
when the product is better and tastier. Strawberries are recognized as a high value produce. That essentially means that the product does well in financial conversion. With year round production, this produce is certain to make reasonable amount, and the farmer could recover financially since he could price his product a little higher than
usual without losing his customer base. Strawberries have been shown to do well under the hydroponics system. The farmer will also do well because with that initial set up, he can reuse the nutrient solution, thereby reduce the entire cost of production. Very little is wasted, the water in hydroponics could be reused and the labor is not as intensive as it is with soil farming. The farmer would also need to monitor the temperature for the plant. Strawberries have been found to do much better when the day time temperature is around 68 degrees, and the night time temperature is around 57, or 58. Again it is well known that strawberries respond well to NFT, or nutrient film technique. As long
as the farmer is able to apply such technique he can be sure he will come out ahead financially. So coupled with minimal labor, the potential for higher income from
selling a superior product, there is very little doubt that the farmer will do well financially. . Also it is a big advantage when the farmer could minimize the cost of doing business, because he can reuse the nutrient base solution. At 57 or 68 degrees, lighting is not as intense as could be in other hydroponics farming produce. The system is not labor intensive, so with little attention to the growing plants a farmer could make much more than he could in soil farming.

7

Comprehensive Hydroponics Supply


IPRWire Staff Writer Home Family/Gardening 2007-06-26
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Whether you are a newcomer to indoor gardening or have been practicing it for years, you are aware that it is certainly not the most practiced kind of gardening done in the world today. Though there are more and more people growing their own flowers, plants, and vegetables each year, there is certainly not a majority of people growing these indoors in water instead of outdoors in soil. It is for this simple reason that it is not always easy to get your needs met when it comes to getting all of the hydroponics supply items that you need to start and maintain an indoor growing system.

Though a trip to any neighborhood gardening shop will not bring a whole lot of results if you are looking for indoor gardening supplies, some shops do offer a little corner with nutrients for your water trays or lighting for your indoor garden. For most indoor gardeners, however, the amount of available items and products is completely insufficient for operating a functioning indoor garden.

Some of the things that are needed are offered by these general gardening shops, but a lot of the items are missing. Anyone who is serious about indoor gardening is looking not just for a bag of nutrients for their water garden. They are also looking for a variety of different types of such nutrients. If you find yourself in this situation, you might look to the Internet in order to meet your hydroponics supply needs.

The good thing about the Internet is that it can bring supplies to people across the U.S., or even across the world. A specialized shop just for indoor gardening might not draw enough customers in order to stay open, but an online store has the opportunity to draw customers from across the U.S. or across the world. It is for this simple reason that the Internet is probably a better place to look if you need more indoor gardening supplies than can be found in your local gardening center.

The question then becomes how to find the best hydroponics supply online store. As with many other categories of online stores, there is a large variety available, so choosing the right one is not usually an easy task. Be sure to look for companies that offer a variety of products, and compare prices to make sure you are finding the best deals on individual items.

The Hydroponics Outlet not only offers a selection of top of the line products at low prices, they also provide personalized customer service. The people behind this online store are not primarily concerned with making a sale they are primarily concerned with helping their customers grow the best flowers, plants, and delicious vegetables inside their homes. This is the reason why we are the best when it comes to hydroponics supply sources available online. Visit http://www.hydroponicsoutlet.com today to learn more.


8

The Ideal Hydroponics System


Ann Marier Home Family/Gardening 2007-04-22
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Any hydroponics system is based on the same primary principle: you replace the soil with something else to support plant roots, in an effort to give a chance in areas of the world where nothing grows because of poor soil quality, such as sand and ice deserts, high mountain platforms and many more. If we look at the word's meaning : "hydroponics system", 'hydro' means water and 'ponos' refers to labor, so a hydroponics system is defined as the "working water".

How hydroponics systems evolved and who used them

A hydroponics system was attested to have been created and used for the first time by the Babylonians, and we also know that the Aztecs possessed similar knowledge about building it too. When referring to a hydroponics system as we know it today, we must take into consideration that the actual concept appeared at the beginning of the 19th century.

Over the last several hundred years, horticulturists and many scientists have tried to develop various hydroponics system models attempting to grow crops in regions of the globe where the soil makes traditional agriculture impracticable. A version of a hydroponics system was included in the NASA spacial program bringing fresh vegetables in space and helping astronauts clean the air.

Before the late 1970s very few people were interested in hydroponics system models and those pioneers were scientists or horticulturists. In the years that followed more and more people were attracted by this idea, and many hydroponics system models were bought to be used as a hobby.

Agriculture using hydroponics system models needs very few or no pesticides at all, since almost all the problems plants have are generated by soil, so practically you will have ecological crops at a decent price. If you are a professional horticulturist buying a hydroponics system isn't an expensive and risky investment, because the need for ecological food has increased all over the world. Thus it is sure fact that there will be buyers for your crops. But not only horticulturists benefit from the advantages of hydroponics system models, teachers also find them very useful especially when teaching children about plants and crops.

What is the potential of hydroponics system models?

As I said before hydroponics system models bring something new, they are an innovation based primarily on technology and electrical power supply. I also have some doubts about those who say that hydroponics system models can bring food in poor countries, in such cases a hydroponic system needs an electric infrastructure first in order to serve community interests.

The potential of this new agricultural opportunity attracted many investors especially after the 80s, when all the hydroponics system components were made out of plastic, which is cheap and easy to replace when needed. Maybe this is the agriculture of the future.


9

Commercial food productions and hydroponics


Abdul Vasi Home Family/Home Improvement 2008-02-07
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When for the first time Hydroponics was successfully used in the 1930s, it marked a prototype shift in growing crops in conventional soil to soil less hydroponic cultivation. The first crop that was grown by hydroponics was peppers and tomatoes. Gradually as the technology advanced even crops like cucumber and lettuce were also grown on hydroponics. Today it is possible to grow almost any crop on hydroponics. Commercial food productions with the help of hydroponics have gained popularity slowly but surely. For commercial crop production a number of techniques are used like substrate system, deep flow and aeroponics systems and nutrient film technique. Commercial food production by hydroponics have proved to be more beneficial and yielding than the conventional methods of agriculture. Statistics state that in the green houses used for commercial hydroponics system, the yield has been almost 20 to 25% more than what the conventional agricultural practices could have achieved. Some crops like tomatoes can be grown almost double using the same amount of place the conventional system uses. Hydroponics has gained quite popularity for growing commercial crops more because it is less knotty and complicated. This is more because the grower does not have to worry about weeds and pests. Statistical data revels that per year the growth of a commercial crop like tomato using hydroponics has been around 40,000 to 60,000 pounds per acre. In some places the produce has been as high as 650,000 pounds per acre. By using hydroponics, the yield of crops like lettuce and pepper has also been almost a staggering four times more than conventional agricultural produce. The popularity of Hydroponics Gardening has increased substantially and sensationally over the years both among the growers as well as the consumers. Hydroponics ensures that the crop is fresh, healthy and clean. Since there is no use of pesticides and insecticides, the vegetable is of high and consistent quality. Conventional agricultural practices cause environmental hazards due to the use of insecticides. The ground water is contaminated due to these pesticides making the drinker susceptible to diseases. The commercial system of hydroponics eliminates all these possibilities of causing environmental hazards. The grower also like hydroponics systems to grow commercial crops a lot because it involves a lot of fewer hassles. Owing to the fact that hydroponics can be fully automated the grower does not have to worry too much even if he is away for days.


10

Foliar Fertilization In Hydroponics


Diana Heyden Home Family/Gardening 2007-11-19
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In hydroponics the most widely use method of plant fertilization involves application of a nutrient. solution to the plant root. This is an effective method in most cases, but under certain conditions it may be quite ineffective. Though plant root systems can efficiently absorb the nutrients in normal circumstances, under conditions of root damage, nutrition deficiency or propagation from cuttings alternative strategies may need to be adopted. Foliar feeding, a technique of providing nutrients through the foliage of plants is often resorted to under such circumstances. Foliar feeding enables plants to absorb nutrients through the leaves. The minerals within the nutrients can then be translocated by plant within its tissues.

Nutrient Uptake in Hydroponics
Nutrient uptake, in hydroponics is a complex process that may be adversely affected by factors such as nutrient interactions, nutrient depletion, element unavailability due to the element being “bound” etc. Even environmental conditions like temperature can affect nutrient uptake through the roots. Plant pathogens such as fusarium pythium and phytophthora can also affect the normal functioning of the root zone severely restricting nutrient uptake. Other plant stress conditions such as anaerobic conditions in the root zone where oxygen is deficient, can limit nutrient uptake. Many other conditions can cause stress to plants such as humidity, lack of light, high radiation levels, etc. and directly or indirectly affect nutrient uptake. Under such situations foliar feeding has been found to be most effective in ensuring reliable nutrient uptake for healthy plant growth. Foliar fertilization can thus help protect crop yields and quality against the vagaries of a wide variety of agents that can cause crop damage including climate, pests etc.

Foliar absorption
Absorption of nutrients in foliar feeding takes place through stomata on the leaves. These are located on the underside or on both sides of the leaf. The stomata normally function to enable gas exchange for photosynthesis and releasing water vapor in stomatal transpiration. But the leaf can also work as an organ for absorption and excretion of water and substances dissolved in it. Foliar feeding takes advantage of this to supply vital nutrients through the stomata. However, it is not possible for plants to be fed solely via the leaves; therefore the scope of foliar fertilization is limited. It is however, extremely effective as method of supplying micro nutrients.

There are several aspects of foliar fertilization that are not yet fully understood. There are several known and unknown factors that influence the effectiveness of foliar fertilization. It is known however, that the rate at which the nutrients supplied by the nutrient sprays are absorbed by the leaves and translocated within the plant is of critical importance. Also, practical experience provides several pointers for utilization of the technique for optimal benefit.

Application Considerations
The use of a good quality, non ionic wetting or sticking agents, such as Coco Wet, is vital to enable droplets to adhere to leaves. They also assist in the absorption of the fertilizer solution into the plant tissue. The foliar fertilizer solution is best applied as a fine mist until 'run off' so that the entire leaf surface is wetted. The effectiveness is also dependent on the timing of the application during the day. Early morning and evening are best suited as the conditions during these times of the day are ideal to allow the leaf to dry rather than stay wet for a long time. Foliar solutions are best applied while there is light but when temperatures are still cool; they should not be applied in hot, sunny conditions. In hot, sunny conditions the stomata are likely to be closed making the feeding ineffective. For the same reasons feeding is ineffective when the plants are wilting or under osmotic stress.

For the best results foliar feeding should be carried out on a regular, weekly basis. It is also found to be particular beneficial when limited to times of high nutrient demand. It is during stages of active growth such as during fruiting that foliar feeding is known to yield optimal results as during these stages leaves are particular efficient in absorbing nutrients.

Application in Hydroponics Cultivation
Even when hydroponic crops may appear to be well supplied with the necessary nutrients, it has been shown that they can still benefit from application of foliar fertilizers. Foliar fertilization was found in a number of studies involving hydroponically grown crops such as capsicum and potato, to dramatically increase yields. A weekly foliar feed applied to tomato crops grown in rockwool, also produced substantial improvements in both quality and quantitiy of the yields. It is believed that similar results can be obtained with a number of hydroponic crops with similar nutrient requirements. According to experts in the field, the process of foliar fertilization, is likely to emerge as a growth enhancing cultivation technique in the near future rather than just a 'quick fix' solution for mineral deficiency symptoms.

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11

Ancient Hydroponics Gardens


Susan Slobac Home Family/Gardening 2007-09-26
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The word “hydroponics” is derived from two Greek words: cidra, meaning water, and punikos, meaning labor; thus, literally “waterworks.” Contrary to popular belief, hydroponic gardening is an ancient form of agriculture, going back 3,000 years. There are references to the cultivation of plants directly in water in Egyptian records dating back to the time of the New Kingdom and the “Woman-King,” Pharoah Hatshepsut around 1460 BCE.

The best-known grow systems of the ancient world were the Hanging Gardens of Babylon. Also known as the Gardens of Semiramis, the Hanging Gardens operated on the principles of hydroponic gardening. Reputed to have been located near Al-Hillah in present-day Iraq, this elaborate grow system has become regarded as one of the Seven Wonders of the Ancient World.

The Hanging Gardens were built by King Nebuchadnezzar around 600 BCE. His wife, Amytis, was from Media, whose people were the ancestors of the modern Kurds. The country of Medea was a mountainous one, roughly corresponding to present-day Kurdistan, northern Iran and Azerbaijan. Legend says Amytis became homesick for the mountains and the flora of her homeland; Nebuchadnezzar had the Gardens constructed for her. According to Greek historians of the time, the Hanging Gardens, a water pipe led into a well tower, which supplied water via a number of vaults for fruit trees growing in a layer of asphalt.

Centuries later, Italian traveler Marco Polo, who reportedly visited China during the late 13th Century CE and introduced pasta to Italy, commented on what he called the “Floating Gardens.” Around the same time on the other side of the world, the Mexica – one of the native peoples who later formed the Aztec Empire of Mexico – built a city called Tenochtitlan on the shores of Lake Texcoco. Where Mexico City stands today, the Mexica constructed an extensive urban center that included a type of early hydroponic system upon which plants were cultivated on the surface of the water. These early Mexican “floating gardens” were developed out of necessity, because arable land was at a premium in the area. Called chinampas, they were actually small, artificial islands that were created by scooping up mud from the marshy areas bordering the lakes. This mud was ultimately held together by tree roots; food plants were cultivated on these “islands,” and were amazingly productive.

The modern history of hydroponics actually begins in 1627, when Sir Francis Bacon’s Sylva Sylvarum was published posthumously. In this treatise, Bacon – an English philosopher and contemporary of Shakespeare – wrote about the cultivation of terrestrial plants without soil. Although Bacon died before his theories could be explored, the idea of water culture caught on as an area of scientific study throughout the remainder of the 17th Century. By the 1860s, German botanists Julius von Sachs and Wilhelm Knop had perfected the first nutrient solutions for soilless agriculture, and modern hydroponic gardening was born.


12

Introduction in Hydroponics – II


Ranbhir Home Family/Gardening 2007-05-01
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Introduction in Hydroponics – II

More on Hydroponics

Plants can be supported in a variety of ways, by using frames and tying the plant stems to them at regular intervals using plastic ties. Automatic reels can be bought which makes the job a lot easier. They consist of a spring loaded reel of cord with a hook arrangement that fixes to the ceiling, or a top runner, and a hook or loop to tie to the top area of the plant stem. As the plant grows so the slack in the cord is taken up by the reel. Depending on your growing system the roots will either be supported or not. If no support is used, for example in a water culture system/Aquaponic System, then the plant should be supported at or near the base of the stem, to stop it from lifting if the reel supports are used.

The optimum temperature for your plants to grow will again vary with both genus and species. Ask your supplier what this should be. Now you need to devise a system to maintain the temperature within the optimum top and bottom limits. This can be achieved by either a series of fan and/or heaters together with various other pieces of equipment such as timers, controllers, monitors and CO2 dosers, or by a commercially produced environmental control system. These ready made systems come in a variety of price options designed to suit almost every pocket.

A fan assisted ducting system normally provide fresh air requirements for your grow room. This introduces clean air (via a filter to remove impurities) from the outside. An Ozone generator is often used to neutralize any noxious odors and to improve the supply of oxygen. Another similar ducting system then extracts the dirty air back to the outside, again via a filter to remove impurities and cut down on unwelcome odors. Humidifiers can be used, if needed, to increase the amount of airborne water vapor.

In general, the more you are prepared to spend, the more sophisticated the systems that are available to you.

A Brief Word of Warning:

Poor quality lighting systems or electrical equipment can be very dangerous sometimes. Always buy quality assured electrical equipment that carries the safety mark for your country. Do not risk your life or the lives of those you love just to save a few pounds or dollars. Accidents are more likely to occur if the person who sets up the equipment is not particular about safety.

- IF IN DOUBT CONSULT YOUR SUPPLIER OR A PROFESSIONAL ELECTRICIAN -


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13

How does hydroponics works?


Abdul Vasi Home Family/Gardening 2008-02-07
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Hydroponics is a technique by which plants are grown without using soil. The soil acts as the nutrient reservoir for the plants. If the plants get nutrients from elsewhere then there is no need of soil for the plants to grow. Most of the times in hydroponics, introduction of minerals to the plants is done by cultivating plants in water that is rich in the nutrients needed by the plants to grow. Hydroponics can be done by using other mediums than water also. Hydroponics is relatively easy to do and also involves fewer hassles than growing plants in soil. Hydroponics has lots of advantages. One does not have to deal with weeds and soil borne insects. The plants also mature quite easily. Since there are no insects to be dealt with, the plants are disease free. The roots of a plant stretch a lot to acquire minerals from the soil. However, since by using hydroponics the minerals are available at the roots only, the cultivation of many plants can be done in less space. Owing to the fact that hydroponics is completely water based, it can be easily automated saving a lot of energy and time. A fully automated hydroponics system ensures that even if the farmer is not there, the plants get all the care they need. Hydroponics Gardening can be done indoors also. Grow lights are used to provide sufficient light to the plants. For hydroponics special fertilizer mixtures are required. A standard fertilizer would prove to be futile in the case of hydroponics. Hydroponic fertilizers are widely available in the market and one can find them anytime. One has to ensure that after dilution, these special fertilizers have a pH value between 5 to 6. One also has to be careful that the solution is changed in every two weeks. While changing the solution adequate water quantity should also be added because if the water in any case evaporates then the fertilizer would get thick and concentrated. If that happens then the roots would be at high risk of getting burned. The hydroponics system also needs some inert material that would provide support to the plant. These inert materials may include foam chips or clay pebbles. A pump is also required to ensure the water flow. The type of the pump depends up on the size of the reservoir. If these factors are kept in mind then hydroponics can produce excellent results with high yield and good quality of plants.


14

Build Your Own Hydroponics System


Ann Marier Computer/Computer 2007-04-18
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Those of you who are beginners in hydroponics may be very interested in how to build your own hydroponics system. Actually they want something easy to implement and if possible with fast results. But before you make up your mind to build your own hydroponics system you must decide what type of crops you will grow, vegetables, flowers, fruits or something else. To respond to the clients' requests many companies that act in the hydroponics market edited various guides on how to build your own hydroponics system.

A brief description about the most known hydroponic system

You will appreciate the Ebb and Flow system if you are trying to build your own hydroponics system for the first time. It is not complex at all, in fact this is the right solution for those trying to learn about hydroponics. Generally speaking, the system is based on several reservoirs depending on the design you adopt, a timer that synchronizes a pump to flood the plants with the nutrients at a certain interval of time. If you decide to build the Ebb and Flow model consider the following parts: a flood tray, you must set on the size and shape according to your plans and a nutrient reservoir is also needed.

Under the circumstances you must calculate the needed volume according to the flooding intervals and the amount of liquid required for each flood, be careful to consider this component because if your reservoir would get empty the crops will be lost, also you must buy the Ebb and Flow fittings.

The tubings needed, all the pipes must respect you plan specifications so be consequent because not sticking to your planning can make your project a mess. A water pump is what keeps your crops alive so don't try poor quality pomps that can practically compromise the crops. As you can see to build your own hydroponics system is no easy thing to do, but it's not impossible either. The growing medium is another factor that needs to be considered when choosing what plants to have.

Is hydroponics an attraction

Hydroponics is attracting more and more people day by day because it is simply great to grow plants without soil and the problems it implies. Thirty years ago hydroponics was just beginning to be appreciated, and to build your own hydroponics system was considered a very difficult and bold task to accomplish. It was so hard to achieve because plastics were just at the beginning and prices were still high, but now you can acquire a cheap model for less than $200 so many began to appreciate how pleasant this hobby really is.

15

Growing your Own Hydroponics Garden: Introduction to Hydroponics Gardening


M. Markella Home Family/Gardening 2007-08-08
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Hydroponics gardening becomes more and more popular these days. Some consider it miraculous. But what is hydroponics gardening after all? How does this system work? Why is it considered more convenient and more successful than classic gardening (geoponics)? What are the advantages and disadvantages of growing your own hydroponics garden? Here are some answers to the questions above.

With hydroponics you can grow plants (fruits, vegetables, flowers etc.) using water and mineral nutrients instead of soil. The idea behind hydroponics gardening is to provide the plants with all the nutrients they need to absorb, without using soil. Besides, soil is just a nutrient reservoir and its not critical to the plant growth.

You can grow almost any kind of plant using hydroponics techniques but there's no guarantee that you will produce greater crops and more nutritious or better tasting products than with quality soil. What is certain is that hydroponics gardening is cheaper, less tiring and it allows greater control of the plant itself.

Here is a list of the great advantages that hydroponics gardening has to offer comparing with classic geoponics gardening:
- In geoponics gardening you kill the plant when you remove it from the ground while in hydroponics gardening you can package the plant and keep it alive and fresh for longer periods of time.
- In geoponics gardening you have to dispose, sterilize and reuse a solid medium while in hydroponics gardening you don't even use any kind of solid medium.
- In hydroponics gardening you have eye contact and full control of the plant's root system while in geoponics gardening roots are hidden in the ground.
- In hydroponics gardening there's no need to worry about over watering or under watering the plant while in geoponics gardening you always have to change and adjust your watering techniques according on the weather and the soil condition.
- Hydroponics gardening can be developed in areas where there's no quality soil present. For example in areas covered with snow or in a space station while geoponics gardening should always be developed in quality soil in order to produce best crops.
- Hydroponics plants is an excellent plant research and plant learning tool. They can be transferred anywhere without any hassle. In order to study a geoponics plant you have to move to the place where the plant grows.
- Plants grown with geoponics methods may suffer from all kinds of diseases, pesticides, weeds etc. caused by the presence of soil. In hydroponics gardening there's no soil at all no weeds and no pesticides of course.
- The use of water to maintain and preserve the plant can be dramatically reduced in hydroponics gardening, while in classic geoponics gardening you always have to use more water than you need for irrigation.
- A hydroponics garden may be set up with timer systems to automatically fertilize the plants while in geoponics gardening fertilizing the plants is always a pain and most of the times it must be done manually.
- Plants grown with hydroponics techniques are healthier because they receive a balanced and controllable portion of nutrients while with geoponics gardening you can never be sure about the plant's nutrition because there are too many factors to consider, for example whether the soil already contains enough minerals to grow the plants or whether it should be enriched with the right mix of minerals etc.

Here are some of the disadvantages of having your own hydroponics garden:
- Hydroponics gardening usually relies in electrical systems like timers or pumps. These systems control critical aspects of the plant's nutrition routine. If any of the system fails it could result to the total destruction of the plant. In geoponics gardening you just add the water and let soil do the rest.
- If you are serious about hydroponics gardening you need more technical knowledge and information on various subjects (different solutions and mediums, types of irrigation, various materials etc.) while in geoponics gardening the rules are pretty standard and well known to almost everybody.
- Hydroponics plants require close attention, care and support and will die if not frequently monitored while geoponics plants do not require such close attention.


16

Choosing Plants For Hydroponics


Ann Marier Home Family/Gardening 2007-04-24
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There are many plants used for hydroponics, some of them are much more profitable to grow on a hydroponic farm than on traditional soil, an example could be lettuce that needs a lot of water. Different other plants for hydroponics ca be found to be as productive as on classical methods, but you must realize that not any kind of crop can be grown on a hydroponic farm. This is why a good evaluation is required before replacing soil cultivation. Almost all the plants for hydroponics can be grown on soil terrain with similar results, problems appear when soil doesn't allow vegetable growing.

Do plants for hydroponics have special growth requirements?

Any plant regardless of the growing medium has certain needs to grow. Plus, there are also many elements that adjust the growing factors. Parameters like air, water, light are universal, plants for hydroponics respects these principles. The difference is that if a plant always has enough nutriments at its root, it won't concentrate in developing its root, and the entire energy will be focused on blooming and fruit giving. Thus plants for hydroponics are not chosen because they are resistant, but thanks to their capacity to produce a larger crop if they are properly fed on nutrients.

Another common factor that plants for hydroponics and plants in regular cultures have is the air movement. The air circulation will ensure that the plant receives the needed amount of carbon dioxide. The indoor hydroponic systems use all sorts of ventilation methods to replace the air inside, thus preserving the good health of the plants.

If you want to choose plants for hydroponics farming you should be well informed about each plant nutrient and mineral requirements, owing to the fact that the combination of the two is the most important element in the hydroponic system. In gardening or agriculture many minerals are not used in the classical fertilizers because the soil already has a sufficient quantity, hence a surplus won't be necessary.

In the hydroponic system you have to provide all the resources necessary to the plant or else you risk losing the crops or getting poor quality products. So keep in mind not to use soil fertilizers in a hydroponic environment. Plants for hydroponics systems must be treated with solutions that have a pH varying between five and six, also pay attention to the evolution of the plants in the various stages.

Further on plants choice for hydroponics

Plants for hydroponics are more exposed and fragile to variations in the amount of chemicals in the nutrient solution. Maybe in the classical method the soil helps diluting the chemicals avoiding the root being burned, but here you may risk exposing the plant roots directly to hostile action. So if you are not an expert try choosing a plant more resistant to chemical variations or use ready-made nutrient solutions.

17

Hydroponics Systems Overview


Kristen Home Family/Gardening 2008-02-20
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Hydroponics is used to grow plants without the nutrients available from soil. A method of supporting the plant and root structure is devised, and the roots are kept moist with a nutrient solution. Below are some of the more common hydroponic systems.

Ebb and Flow

In a hydroponic ebb and flow system, plants are supported by an inert growing medium in a container placed above the nutrient solution. A pump is used at preset intervals to pump solution into the container with the plants, thus flooding the container. An overflow tube is used to prevent the level of solution getting too high, with the excess draining back into the nutrient container. After a few minutes, the pump is switched off, and the nutrient solution drains back through the pump into the lower container.

Water Culture

In a hydroponic water culture system the plants are placed above the nutrient solution, with their roots immersed in the nutrient solution. Typically, a net pot is used to hold the plant, placed in a hole cut into a styrofoam sheet, which floats upon the nutrient solution. Air is pumped into the solution, typically using an aquarium air pump and air stone. The air keeps the roots from rotting.

Wick Systems

In a hydroponic wick system, the plant is supported by an inert growing medium such as perlite or vermiculite. A wick passes through the growing medium, with the ends of the wick placed in the nutrient solution. The wick draws the nutrient solution into the growing medium via capillary action, which contiues drawing the nutrient through the growing medium to the plant roots.

Drip

In a hydroponic drip system, plants are supported by an inert growing medium. Nutrient solution is pumped at preset intervals through a drip system, delivering nutrient solution to each plant. The system may be designed to recover excess solution, which is reused. In a non-recovery system, the pump timing must be carefully controlled in order to reduce waste and control costs.

Nutrient Film Technique

In this method, plants are supported within tubes or channels, typically within a plastic pot. The plants roots are irrigated by a shallow flow of nutrient solution, which is continually pumped in. The tubes (or channels) are placed at a slight angle to keep the nutrient solution moving.

Aeroponic

In an aeroponic system, the plant is suspended with its roots dangling in the air. Nutrient solution is sprayed onto the roots via a misting system, typically every few minutes.


18

Grow Hydroponics Garden


Robert Home Family/Gardening 2007-11-05
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The Lettuce Raft System - Hydroponics

Each day I respond to more and more emails from people looking for the simplest, most inexpensive means of growing hydroponically. I often recommend the Hydroponic Planter from the previous chapter, however, this “simple and inexpensive” method just isn’t complicated enough. So... after giving it some careful thought, a worthwhile solution presented itself.

The raft system is simple, inexpensive ($20-$30 complete) and “complex” enough to satisfy any first timer’s appetite for a fun project that actually works quite well. In concept, the raft system does exactly as it says. Plants are grown in Styrofoam “rafts” that float in a shallow pool of nutrient. To keep the nutrient from stagnating, a small air pump is used to deliver oxygen to the solution and eagerly awaiting roots.

Parts List

(1) 14 Gallon Roughtote reservoir
(1) Single outlet air pump (Elite 801)
(1) 2’ x 2’ x 1.5” rigid foam sheet
(9) 2” net cups
(1) 6’ x 1/4” air tubing
(1) Air stone
(1) Small bag of LECA
(9) Perfect Starts or equivalent seed starting/rooting plugs
(1) 1/4” compression grommet
+ Hydroponic nutrients

Tools You’ll Need

Electric or battery powered drill - 3/8” or 1/2” chuck
1 7/8” hole saws for cutting plant sites
3/8”drill bit for drilling grommet hole
Jigsaw or coping saw for cutting foam
Razor knife for cutting tubing
A pen or marker

Author’s first prototype raft system made from
a plastic garbage pail. Plants shown were
grown under a 95W 6500K fluorescent bulb
which is said to provide similar output to HID
systems yet without as much heat. Not bad for
three week old lettuce.

Step 1.

Trace the outline of your container onto the styrofoam sheet as shown here.

Step 2.

Measure the distance between the outer edge of your container and the inner wall (measurement ‘X’)

Step 3.
Be sure to cut the styrofoam ‘X’ inches smaller than your outline so that it fits neatly inside the container. After a little bit of additional trimming, you should have a perfect fitting “raft” as shown here. Make sure it can move freely up and down inside the reservoir with it full of water since the pressure may deform it a bit. If this is the case, simply trim away until you can get from 4-8” of up and down movement. This is very important for this system to work properly.


19

HOME GARDENS AND HYDROPONICS


Abdul Vasi Home Family/Gardening 2008-02-07
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Hydroponics over the years have emerges as a very efficient means of growing plants and gardening. The minimum level of efforts to be put in to it and the high results has made it quite favorite among many people. The best thing about Hydroponics Gardening is that one does not have to do all the works related to conventional gardening. One is saved from a lot of tedious works like saving the plants from pests; cutting the weeds etc. the fact that hydroponics can be fully automated has made it a very popular option for home gardens. For people who have a very limited space and want to build a home garden, hydroponics is just the answer. Plants grown in soil extend their roots for acquiring minerals and nutrients from the soil and hence they occupy a lot of space. In hydroponics the mineral contents are introduced at the roots so the roots do not need to stretch and hence they occupy a lesser space compared to plants grown on soil. This gives the chance to the grower to grow a lot more plants in a limited space. However one has to be careful about the number of plants because growing too many plants together may obstruct the light. If each plant does not get the sufficient light it needs to survive and thrive then it will die. Hydroponics is a good option for home gardens also because it can be done indoors. For making a home garden indoors by using a hydroponics system one has to see that there is sufficient light. One my even need grow lights for this serving this purpose. If the plant gets adequate light and sufficient nutrients it would survive both outdoor as well as indoor. On the contrary to the popular perception, hydroponics is quite easy to do and it can be even built at home. This technique is also very inexpensive and the results acquired by it are also much better. Hydroponics ensures that the plants are much more healthy and clean. The plants grow quickly and are better in size that too at a much lower cost. One does not even have a big time commitment towards them because the system can be fully automated. So even of one has to go out somewhere or there is lot of work in hand, the plant would not be neglected and their growth would not be hampered. All in all hydroponics is the best options for home gardens.


20

Tips for Hydroponics Gardening


JessicaThomson Home Family/Gardening 2007-12-21
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Hydroponics gardening is better known as soiless gardening. Carrying its legacy right from the times of the Aztecs civilizations this type of gardening has always fascinated human kind. The famous hanging hardens of Babylonia are also based on the same technique of Hydroponics Gardening . Hydroponics gardening basically means gardening on false soil where the plant and the soil layer float on the water. With the help of Hydroponics you can have your favorite plants planted in your rooms. Generally, Hydroponics gardening is used for decoration purposes. With the help of Hydroponics you can also have flower plants which will fill your rooms with their faint fragrance. However, hydroponic plants also require a lot of care and nutrition. There are various Hydroponics guide and tips through which you can give the plants the exact nutrition and care which they require.
Following tips will help you in making your hydroponic gardening productive and healthy: -
1. Getting a good start: - The germination period of the seeds in case of hydroponics gardening is carried on a medium. Thus it is very important what sort of medium is used for this purpose. Well you can use peat moss, expanded clay, composted bark, gravel or sand. The ones to be avoided are oasis, vermiculite, perlite and rockwool. Thus the above mentioned favorable mediums will help the plants get a good start. Now it is to be kept in mind each an every plant has a different requirement so the medium should be chosen accordingly.
2. Proper Light: - Another important requirement for Hydroponic plants is proper light. The light requirements depend upon the plant types and also the plant's different stages. For this purpose you can use Metal Halide as well High Pressure Sodium lights depending upon the stage of the plant. There are some LED lights which can be accordingly adjusted to feed the plants with lights in their different stages.
3. Giving the required Nutrition: - It is a well known fact that without proper nutrition the plants cannot grow. There are a total of sixteen nutrients which the plants require in order to grow properly. Some of them are macronutrients and some of them are micronutrients.
4. Disease Prevention: - In hydroponics gardening also you will face the same problem of insects and plant diseases. Thus you will have to battle it out. You can do this by selecting disease resistant plants, maintaining clean growing environment, temperature control, proper ventilation and constant monitoring of problems.

Thus by following these tips you can have a pleasant experience of Hydroponics gardening.

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