The improving effects of acid soil with lignin- sludge from treating pulping black liquor was studied using indoor culture methods with plastic reactors.
采用室内塑制质反应器培养方法，研究了制浆废液处理的木质素污泥对酸性土壤的改良效果。
The plastic cement is powdery material including 50 percent of lignin and 50 percent of corn cement according to the weight percentage.
所述的素胶是按重量百分比，含木质素和玉黍胶各50 %的粉状物料。
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