Sludge . organic soil conditioners . growth media . determination of dry matter 污泥.有机土壤改良剂.生长培养基.干物质的测定
2.
Organic soil conditioners and organic material for soil improvement . determination of total organic matter . calcination method 土壤改良用有机土壤改良剂和有机物质.总有机物质的测定.煅烧法
3.
Sludge . organic soil conditioners . growth media . preparation of partially dry test samples . expression of results 污泥.有机土壤改良剂.生长培养基.试验用部分干试验样品的制备.试验结果的表述