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最近几年,采用NFT(营养液膜栽培法)和石绒棉块栽培法等简易的营养液栽培方式培育作物有了迅速的发展,在欧洲,特别是在荷兰,利用石绒棉块栽培蔬菜和花卉,几乎得以普及石绒棉是从玄武岩、矿渣中经高温熔解、离心等处理提炼做成的纤维状物质,除作建筑、保温、隔热材料外,在农业上也得到了广泛的应用.石绒棉块中孔隙度大.其保水力强,对水的吸力也小(pF 2.0以下).排水容易,因此水分的移动性、通透性均好;制品带微碱性,
In recent years, there has been a rapid development of crops cultivated in a simple nutrient solution cultivation method such as NFT (Nutrient Liquid Membrane Cultivation) and Shikonai cotton cultivation method. In Europe, especially in the Netherlands, the cultivation of vegetables And flowers, almost universal Poplin is from the basalt, slag by high temperature melting, centrifugation and other processing made of refined fibrous material, in addition to construction, insulation, insulation materials, but also in agriculture has been widely used Aspirin block has large porosity, strong water holding capacity and low suction on water (pF 2.0 or less) .Drainage is easy, so the water mobility and permeability are good; the product is slightly alkaline,