盐碱土壤改良剂对盐碱地理化性状的影响

摘要

To make clear the changes of soil organic carbon,pH value,bulk density and salt content by a new proprietary -rights soil amendment for saline field,a field experiment was carried out.The results showed that the soil amendment could decrease the soil pH value,bulk density and salt content and increase the soil organic carbon,and the effects improved with the increase of application amount and time.The opti-mized application amount of soil amendement for saline field was 100 ~150 kg per 666.7m2 according to the improving effect and economic cost.%采用大田小区试验研究了自主研发的盐碱土壤改良剂对盐碱地土壤有机质、pH 值、容重和全盐量等理化性状的影响。结果表明，施用土壤改良剂能有效降低土壤 pH 值，增加土壤有机质含量，降低土壤容重和全盐量，且随着施用量增加、施用时间延长，改良效果越突出，考虑到经济投入和改良效果，以666．7m2用量100～150 kg 为宜。