蔬菜温室大棚土壤盐渍化成因分析

摘要

对栽培蔬菜温室大棚的施肥状况、土壤养分含量、pH值和土壤含盐量进行调查和分析,结果表明,栽培蔬菜温室大棚施肥过量,养分在土壤中大量积累,土壤次生盐渍化问题比较突出,造成土壤pH值降低,土壤电导率、含盐量增高,已影响到蔬菜的正常生长.结合实际情况提出了一些相应的防治对策.%The fertilization status, soil nutrient content, pH value and soil salt content were investigated and analyzed in vegetable greenhouses. The results showed that excess fertilization in vegetable greenhouses had made the nutrients accumulate largely in soil and led to more prominent soil secondary salinization, pH value decrease, soil electrical conductivity and salt content increase, so the vegetable growth had been affected. Combined the actual conditions, some counternieasures were put forward.