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NFT Hydroponics System
NFT Hydroponics System
Hydroponic NFT is the construction or management of water used as a growing medium and plants as well as the plant roots absorb nutrients necessary where the cultivation of plants without using soil as cropping media. Hydroponic NFT also includes farming in which the water has dissolved nutrients in it.
In a hydroponic irrigation system NFT (Nutrient Film Technique), the water supplied to the plant roots are shallow row. Plant roots are in the superficial layers of the nutrients in accordance with the needs of the plant. Rooting can develop in nutrients and other partially developed on the surface of the solution. The flow of water is very shallow, so the top of the roots growing on the water though remain in the air moist. All around it there is a layer of root nutrient solution.
Said the film on hydroponic NFT showed a very thin stream of water ranging from 3 mm. Thus, hydroponics uses only water flow (nutrients) that circulate for 24 hours continuously as a medium. The advantages of hydroponics systems include the necessary water is not much, the levels of dissolved oxygen in the nutrient solution is quite high, readily available water as a medium, the pH of the solution is easy to set, and light that can be supported by the gutter.
The slope of the gutter at least 1%, whereas the limit does not exist. A British study shows that the more steep gutters NFT, the higher crop production. Of course, this is offset by the flow rate adequate nutrition. To determine the speed of entry of the nutrient solution to gutter need routine observations. Importantly, the thickness of the layer of nutrients is not more than 3 mm. Usually the leaf vegetable crops such as mustard, speed the flow of nutrients in the gutter range 0.75-1 liters / min with a slope of about 3% gutters. If the plant roots more and more, automatic nutrient flow velocity decreases. Plants that are closest to the inlet will absorb more nutrients and oxygen. It obviously will affect the growth and productivity of plants. To minimize these negative effects, chamfer length should be no more than 12 m. Minimum chamfer width 14 cm. The standard is applicable unttuk slope of no more than 5%. If steeper, the recommended limit is 18 m long chamfer.
Hydroponic NFT is the construction or management of water used as a growing medium and plants as well as the plant roots absorb nutrients necessary where the cultivation of plants without using soil as cropping media. Hydroponic NFT also includes farming in which the water has dissolved nutrients in it.
In a hydroponic irrigation system NFT (Nutrient Film Technique), the water supplied to the plant roots are shallow row. Plant roots are in the superficial layers of the nutrients in accordance with the needs of the plant. Rooting can develop in nutrients and other partially developed on the surface of the solution. The flow of water is very shallow, so the top of the roots growing on the water though remain in the air moist. All around it there is a layer of root nutrient solution.
Said the film on hydroponic NFT showed a very thin stream of water ranging from 3 mm. Thus, hydroponics uses only water flow (nutrients) that circulate for 24 hours continuously as a medium. The advantages of hydroponics systems include the necessary water is not much, the levels of dissolved oxygen in the nutrient solution is quite high, readily available water as a medium, the pH of the solution is easy to set, and light that can be supported by the gutter.
The slope of the gutter at least 1%, whereas the limit does not exist. A British study shows that the more steep gutters NFT, the higher crop production. Of course, this is offset by the flow rate adequate nutrition. To determine the speed of entry of the nutrient solution to gutter need routine observations. Importantly, the thickness of the layer of nutrients is not more than 3 mm. Usually the leaf vegetable crops such as mustard, speed the flow of nutrients in the gutter range 0.75-1 liters / min with a slope of about 3% gutters. If the plant roots more and more, automatic nutrient flow velocity decreases. Plants that are closest to the inlet will absorb more nutrients and oxygen. It obviously will affect the growth and productivity of plants. To minimize these negative effects, chamfer length should be no more than 12 m. Minimum chamfer width 14 cm. The standard is applicable unttuk slope of no more than 5%. If steeper, the recommended limit is 18 m long chamfer.
In NFT engineering, plant enforced in a rectangular gutter normally used for
gutters home or pvc pipe diameter of 2.5 ", 3", 4 ". It could
also be custom designed fiberglass. In order for plants to grow upright if you
use rockwool plants gutters as planting medium is inserted in a styrofoam be
connected continued along the upper surface of the gutter so that water flow in
the gutter is protected and the bottom of the gutter into the dark so that the
moss will not tumbuh..begitu also at planting using pvc pipe.
Styrofoam is generally mounted in the gutter has a thickness of 1 cm to 3 cm and a length of 100 cm. Styrofoam is drilled 1.5 cm with a distance of 15-20 cm to 30-40 cm leaf vegetables and fruit crops.
Other equipment that is absolutely necessary that tank and pump. Nutrient storage tank is made of plastic or galvanized and its size depends on the plant population. Tank equipped with a pump to push the nutrient solution so that the plant into the distribution network or inlet.
Environmental factors influence the success of the business hydroponics. Hydroponic cultivation is affected by natural components that should be controlled and used optimally to support the production business. Environmental factors that generally affect the hydroponic cultivation is rainfall, humidity, light, temperature, elevation and wind.
Adequacy of light should be used to provide higher nutrient concentrations. At high temperatures, the chemical reaction will go fast so rapid plant growth.
Styrofoam is generally mounted in the gutter has a thickness of 1 cm to 3 cm and a length of 100 cm. Styrofoam is drilled 1.5 cm with a distance of 15-20 cm to 30-40 cm leaf vegetables and fruit crops.
Other equipment that is absolutely necessary that tank and pump. Nutrient storage tank is made of plastic or galvanized and its size depends on the plant population. Tank equipped with a pump to push the nutrient solution so that the plant into the distribution network or inlet.
Environmental factors influence the success of the business hydroponics. Hydroponic cultivation is affected by natural components that should be controlled and used optimally to support the production business. Environmental factors that generally affect the hydroponic cultivation is rainfall, humidity, light, temperature, elevation and wind.
Adequacy of light should be used to provide higher nutrient concentrations. At high temperatures, the chemical reaction will go fast so rapid plant growth.
Theoretical Plant Water Needs
Water requirements or evapotranspiration are two terms transpiration and evaporation. Transpiration is the water that enters the roots of plants and used to form a network of plants, or released through the leaves of the plants into the atmosphere. While evaporation is the water that evaporates from the adjacent land, surface water, or from the surface of the leaves of plants.
Crop water requirement is the amount of water used to meet the needs of crop evapotranspiration so that plants can grow well. Or crop water requirements are: the amount of water needed to replace the water lost through evaporation. Evaporation can occur through surface water (evaporation) and leaves of plants (transpiration). If both the evaporation process occurs together there evapotranspiration.
With such a large crop water requirement is the amount of water lost through evapotranspiration process. Effect of plant characteristics on crop water requirements given by the crop coefficient (kc) which states the relationship between ETo and crop ET (ET plant = kc. ETo). Kc values vary with the type of plant, plant growth stage, the growing season, and the weather conditions that exist ...
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