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A vegetable cultivation system and a vegetable cultivation method
A vegetable cultivation system and a vegetable cultivation method
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机译:蔬菜栽培系统及蔬菜栽培方法
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摘要
[Problems] Prior art technology has a problem in that when a plant is cultivated for a long period of time on a polyvinyl alcohol (PVA) film having its lower surface positioned in contact with a nutrient fluid, plant roots that have formed penetrate through the film. [Means to solve the problems] A plant cultivation system wherein the PVA film has an equilibrium degree of swelling in the range of from 125 to 250 % as measured in water at 30 °C and has a loss tangent (tan ´) in the range of from 0.005 to 0.2 as measured in an equilibrium swollen state in water at 30 °C, and a method for cultivating a plant by using this plant cultivation system. [Industrial applicability] Plant cultivation can be performed for a long period of time while avoiding infection by bacteria and the like causative of plant diseases. Therefore, the present invention is useful in, e.g., agriculture and the manufacture of pharmaceuticals.
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