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2 沼渣作为无土栽培基质的研究现代温室的栽培基质有 3类 :(1)无机型 :岩棉、珍珠岩或煤渣 ;(2 )有机型 :草炭 ;(3)有机、无机混合型 :草炭与珍珠岩或草炭与煤渣混合。从生产水平来看 ,以岩棉作栽培基质的蔬菜产量最高。原因是岩棉的物理性状良好 ,结构稳定 ,在频繁的滴灌下不
2 biogas residue as a substrate for soilless culture There are three types of cultivation substrate in modern greenhouse: (1) inorganic type: rock wool, perlite or cinder; (2) organic type: peat; (3) organic and inorganic mixture Type: peat and perlite or peat mixed with cinder. In terms of production level, the production of vegetables with rock wool as the cultivation medium is the highest. The reason is the physical properties of rock wool good, stable structure, not frequent drip irrigation