The Technology Of Soilless Cultivation Dft Hydroponics

By Author: yang huimin
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Soilless Cultivation DFT Hydroponics technology hydroponic vegetables, vegetable roots growing in 0.5-1cm nutrient film, and in water tan have nutrient liquid, pump nutrient liquid to vegetable roots, by capacity by time.

Soilless Cultivation DFT Hydroponics vegetable is a whole modern agriculture planting method, this is a whole greenhouse, no any pollution, this planting method very suits for planting leaf vegetables, such as lectures, small cabbage, rape. this planting method can in whole year circulation planting vegetables.

The technology of Soilless Cultivation DFT Hydroponics

work principle in usual same with NFT technology, it's nutrient liquid deep about 7-10cm, or deeper this sees by your planting which kind vegetables.
(1)greenhouse hydroponic greenhouse use temperature control system:
Soilless Cultivation DFT Hydroponics system work principle: when greenhouse outside temperature too high exhaust fan will drainage greenhouse inside air to outside, this will formation greenhouse inside and outside negative pressure.at the same time, water curtains wall will whole wet, under negative ...
... pressure outside air will pass through water curtains and enter inside, when passing through water curtains will reduce temperature, within 10 minutes reduce temperature to 26-30

(2) greenhouse ventilation system
Soilless Cultivation DFT Hydroponics main have roof ventilation and sidewall ventilation, this system from wind driection ventilation and from back wind direction finish the whole ventilation process.

roof ventilation have manul or automatic type
sidewall ventilation also have manual or automatic type

(3) greenhouse use inside shade system and outside shade system

Soilless Cultivation DFT Hydroponics outside the shade system main use black shade mesh, shade rate from 65%,75%,85%,95%%, use round pipes woven together, or use other pipes woven together. in certain meaning this system can avoid wind, snow, hail, rain, in some degree can protect greenhouse

Soilless Cultivation DFT Hydroponics inside the shade system this system also uses black shade mesh, shade rate the same with outside shade system. this system also can avoid infrared overflow, in cold weather can protect the greenhouse inside temperature.