聚乙烯醇对土壤理化性状的影响

摘要: 针对我国部分烟田土壤理化性状变差的现状,研究了聚乙烯醇(PVA)对土壤理化性状的影响。结果表明:①1/10000~1/1000PVA能有效地形成土壤水稳性团粒(以下简称"成团")。②PVA能明显减少土壤水分散失量。③PVA能增加酸性~弱酸性土壤的pH值。④PVA对土壤钾具显著的抗淋溶效果。

Abstract: This paper reported the effects of PVA to soil physical and chemical properties.The results indicated that 0.01%~0.1% PVA could effectively form the soil water-stable crumbs, reduce the soil water evaporation, add the pH of acid soil and decrease the soil K⁺ leaching.