How can I start hydroponics farming on a small scale. What all is required to start such farming?

Question

Also plese suggest a good crop to start with

Answer 1

How small of a scale are you envisioning.  When doing some agricultural research, I could grow full--size corn plants with full-size ears in an 18X18X12 inch stainless steel pan.  I designed a custom nutrient blend, used deionized water, and (surprisingly) did not have to aerate the nutrient solution.  So, you can start really small.  Contact your local University Cooperative Extension Agent.  He or she will be able to direct you to information and resources on hydroponics.  As you grow your hydroponics enterprise, keep in mind that when you change out the nutrient solutions, you will have to have a plan for disposing of the used-up nutrients properly -- you can't just dump it out on the ground and/or down the sink or storm sewer.

Answer 2

I suggest Indica

They don't grow as tall, and produce a larger harvest

this explains the basics

http://www.greenmanspage.com/guides/

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Answer 3

Hydroponics is a method of growing plants using mineral nutrient solutions instead of soil. Terrestrial plants may be grown with their roots in the mineral nutrient solution only or in an inert medium, such as perlite, gravel or mineral wool. A variety of techniques exist.

Plant physiology researchers discovered in the 19th century that plants absorb essential mineral nutrients as inorganic ions in water. In natural conditions, soil acts as a mineral nutrient reservoir but the soil itself is not essential to plant growth. When the mineral nutrients in the soil dissolve in water, plant roots are able to absorb them. When the required mineral nutrients are introduced into a plant's water supply artificially, soil is no longer required for the plant to thrive. Almost any terrestrial plant will grow with hydroponics, but some will do better than others. It is also very easy to do; the activity is often undertaken by very young children with such plants as watercress. Hydroponics is also a standard technique in biology research and teaching and a popular hobby.

[edit] History

The hydro (water) and ponos (labour). Many people use the term hydroponics to describe any methods of growing that does not use soil (although some scientists dispute this definition) and in that sense ancient peoples such as the Babylonians and Aztecs used hydroponics, as nutrients were obtained from other sources. The mineral nutrient solutions used today for hydroponics were not developed until the 1800s.

The earliest published work on growing terrestrial plants without soil was the 1627 book, Sylva Sylvarum by Sir Francis Bacon, although he died in 1626. Water culture became a popular research technique after that. In 1699, John Woodward published his water culture experiments with spearmint. He found that plants in less-pure water sources grew better than plants in distilled water. Mineral nutrient solutions for soilless culture of plants were first perfected in the 1860s by the German botanists, Julius von Sachs and Wilhelm Knop. Growth of terrestrial plants without soil in mineral nutrient solutions was called solution culture. It quickly became a standard research and teaching technique and is still widely used today. Solution culture is now considered a type of hydroponics where there is no inert medium.

In 1929, Professor William Frederick Gericke of the University of California at Berkeley began publicly promoting that solution culture be used for agricultural crop production. He first termed it aquiculture but later found that aquaculture was already applied to culture of aquatic organisms. Gericke created a sensation by growing tomato and other plants to a remarkable size in his backyard in mineral nutrient solutions rather than soil. By analogy with the ancient Greek term for agriculture, geoponics, the science of cultivating the earth, Gericke introduced the term hydroponics in 1937 (although he asserts that the term was suggested by Dr. W. A. Setchell, of the University of California) for the culture of plants in water (from the Greek hydros, water, and ponos, labor).

Reports of Gericke's work and his claims that hydroponics would revolutionize plant agriculture prompted a huge number of requests for further information. Gericke refused to reveal his secrets claiming he had done the work at home on his own time. This refusal eventually resulted in his leaving the University of California. In 1940, he wrote the book, Complete Guide to Soilless Gardening.

Two other plant nutritionists at the University of California were asked to research Gericke's claims. Dennis R. Hoagland and Daniel I. Arnon wrote a classic 1938 agricultural bulletin, The Water Culture Method for Growing Plants Without Soil, debunking the exaggerated claims made about hydroponics. Hoagland and Arnon found that hydroponic crop yields were no better than crop yields with good quality soils. Crop yields were ultimately limited by factors other than mineral nutrients, especially light. This research, however, overlooked the fact that hydroponics has other advantages including the fact that the roots of the plant have constant access to oxygen and that the plants have access to as much or as little water as they need. This is important as one of the most common errors when growing is over- and under- watering; and hydroponics prevents this from occurring as large amounts of water can be made available to the plant and any water not used, drained away, recirculated, or actively aerated, eliminating anoxic conditions which drown root systems in soil. In soil, a grower needs to be very experienced to know exactly how much water to feed the plant. Too much and the plant will not be able to access oxygen; too little and the plant will lose the ability to transport nutrients, which are typically moved into the roots while in solution.

These two researchers developed several formulas for mineral nutrient solutions, known as Hoagland solutions. Modified Hoagland solutions are still used today.

One of the early successes of hydroponics occurred on Wake Island, a rocky atoll in the Pacific Ocean used as a refueling stop for Pan American Airlines. Hydroponics was used there in the 1930s to grow vegetables for the passengers. Hydroponics was a necessity on Wake Island because there was no soil, and it was prohibitively expensive to airlift in fresh vegetables.

In the 1960s, Allen Cooper of England developed the Nutrient Film Technique. The Land Pavilion at Walt Disney World's EPCOT Center opened in 1982 and prominently features a variety of hydroponic techniques. In recent decades, NASA has done extensive hydroponic research for their Controlled Ecological Life Support System or CELSS. Hydroponics intended to take place on Mars are using LED lighting to grow in different color spectrums with much less heat.

[edit] Origin

[edit] Soilless culture

Gericke originally defined hydroponics as crop growth in mineral nutrient solutions, with no solid medium for the roots. He objected in print to people who applied the term hydroponics to other types of soilless culture such as sand culture and gravel culture. The distinction between hydroponics and soilless culture of plants has often been blurred. Soilless culture is a broader term than hydroponics; it only requires that no soils with clay or silt are used. Note that sand is a type of soil yet sand culture is considered a type of soilless culture. Hydroponics is always soilless culture, but not all soilless culture is hydroponics. Many types of soilless culture do not use the mineral nutrient solutions required for hydroponics.

Billions of container plants are produced annually, including fruit, shade and ornamental trees, shrubs, forest seedlings, vegetable seedlings, bedding plants, herbaceous perennials and vines. Most container plants are produced in soilless media, representing soilless culture. However, most are not hydroponics because the soilless medium often provides some of the mineral nutrients via slow release fertilizers, cation exchange and decomposition of the organic medium itself. Most soilless media for container plants also contain organic materials such as peat or composted bark, which provide some nitrogen to the plant. Greenhouse growth of plants in peat bags is often termed hydroponics, but technically it is not because the medium provides some of the mineral nutrients. Peat has a high cation exchange capacity and must be amended with limestone to raise the pH.

[edit] Techniques

The two main types of hydroponics are solution culture and medium culture. Solution culture does not use a solid medium for the roots, just the nutrient solution. The three main types of solution culture are static solution culture, continuous flow solution culture and aeroponics. The medium culture method has a solid medium for the roots and is named for the type of medium, e.g. sand culture, gravel culture or rockwool culture. There are two main variations for each medium, subirrigation and top irrigation. For all techniques, most hydroponic reservoirs are now built of plastic but other materials have been used including concrete, glass, metal, vegetable solids and wood. The containers should exclude light to prevent algae growth in the nutrient solution.

[edit] Static solution culture

In static solution culture, plants are grown in containers of nutrient solution, such as glass Mason jars (typically in-home applications), plastic buckets, tubs or tanks. The solution is usually gently aerated but may be unaerated. If unaerated, the solution level is kept low enough that enough roots are above the solution so they get adequate oxygen. A hole is cut in the lid of the reservoir for each plant. There can be one to many plants per reservoir. Reservoir size can be increased as plant size increases. A homemade fugifilm system can be constructed from plastic food containers or glass canning jars with aeration provided by an aquarium pump, aquarium airline tubing and aquarium valves. Clear containers are covered with aluminum foil, butcher paper, black plastic or other material to exclude light, thus helping to eliminate the formation of algea. The nutrient solution is either changed on a schedule, such as once per week, or when the concentration drops below a certain level as determined with an electrical conductivity meter. Whenever the solution is depleted below a certain level, either water or fresh nutrient solution is added. A Mariotte's bottle can be used to automatically maintain the solution level. In raft solution culture, plants are placed in a sheet of buoyant plastic that is floated on the surface of the nutrient solution. That way, the solution level never drops below the roots.

[edit] Continuous flow solution culture

In continuous flow solution culture the nutrient solution constantly flows past the roots. It is much harder to automate than the static  

Answer 4

Hydroponics (Hydro=water + Ponics=working with) is also known as Soilless Gardening. McLeighs Hydroponics gardening systems can vary from starter kits to vertical systems that provide gardens in a small space such as the Vertical Trough Hobby Kit or the 300 plant in six feet diameter space MHE Mini Coliseum to kitchen units such as an AeroGarden or horizontal systems that can be scaled up from single unit trial size to larger units or large systems of multiple units.

A "Hydroponics Farm" is a state of mind. It can range from one or more units inside a room, to indoor grow cabinets, to some units placed on a deck or lawn, to units inside a greenhouse, to large scale units. Despite the size of the system, the basic procedures remain the same. We recommend that you experiment with one or more smaller units until you feel comfortable with the process.

For detail got thru this link:

http://www.hydroponicsfarming.com/

http://www.hydroponicsearch.com/

Answer 5

You can do hydroponics in an organic sense, by deriving all the plant nutrients you require from composted materials, be it grass clippings, manure, straw, tree leaves.

These are digested and then water of the hydroponic system is recycles through the compost.

Some compost will have  ratios of nutrients far different from the pants you choose to grow, so that a wide variety of substrates is better than a single source.

Hydroponic gardening is almost exclusively done inside  buildings in the north,( particularly if the crop is pot).

You can go al purchased chemical fertilizer, including all the micro nutrients. That does require knowing closely the ratios of  nutrient this crop will need.

Using a layer of sand on the hydroponic bed assists in distributing the fertile water, makes it easier to ensure that plants are getting their minimum.  Using this strategy a simple vapor barrier below the sand becomes a low cost hydroponic bed. You could even do it outside in summer. The sand protects the plastic sheeting from sunlight.

Using sand means it is not soil-less. But soil-less is not a central concept. If you want to grow potato crops hydroponicaly you will have to use something to keep the sun off the tubers. Sand works fine.

Hydroponic growers typically strives to avoid loss of water of transpiration. That can raise humidity to unhealthy levels.  Heat build up can also be a problem.

Also, inside a closed space plants tend to use up all their CO2 unless we are supplying outside air or a source of CO2.