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营养液膜技术,是水培技术最先进的一种栽培方式,只用一层很浅(仅2—3毫米)循环流动的营养液来栽培作物。作物的根系上部分裸露在空气中,下部分浸在浅层缓慢流动的营养液中,构成上述的根系,既能吸收营养液中的养分,也能吸收空气中的氧气,称为营养液膜(NFT)栽培技术。 NFT(营养液膜)的设施构造很简单,生产者可自行购置资材,自己制作设施。设施结构如图1所示,其整个系统是由贮液槽、给水装置、给液装置及
Nutrient liquid membrane technology, is the most advanced hydroponic cultivation methods, only a very shallow (only 2-3 mm) circulating fluid nutrient solution to cultivate crops. Crop roots exposed in the air on the part of the lower part of the slow immersion in the shallow nutrient solution to form the above-mentioned roots, both to absorb nutrient nutrients, but also to absorb oxygen in the air, known as the nutritional liquid film (NFT) cultivation techniques. NFT (nutrition liquid film) facility structure is very simple, producers can purchase materials themselves, making their own facilities. Facilities as shown in Figure 1, the entire system consists of storage tank, water supply device, liquid supply device and