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用黑色塑料薄膜折成三角形向上开口的长条槽.把培植好的高20-30厘米的菜苗放在槽内,用塑料夹把根颈部位夹在塑料薄膜上口.植株上部用竹竿或绳子固定.营养液从槽高的一端流入槽内,液体流经每个植株的根部,最后
With a black plastic film folded into the triangle up the long groove open to cultivate a good 20-30 cm of vegetable seedlings in the tank with a plastic folder to the root part of the neck caught in the plastic film on the upper part of the plant with bamboo or bamboo The rope is fixed and the nutrient solution flows into the tank from one end of the tank height and the liquid flows through the root of each plant and finally