The results showed that lignin could help liberate the residualphosphate in soil.
结果表明:木质素对土壤残余磷具有明显的释放作用。
2
The released quantity of residualphosphate was opositively related to the content of clay and residualphosphate in soil, and the concentration of lignin in the extracting solution.
木质素用量越大,土壤粘粒越多,残余磷含量越高,木质素释放残余磷的数量越多。
3
Residual amounts of iron and aluminum dilute the phosphate content.