农田土壤化肥污染及对策

Status and Countermeasures of Farmland Soil Polluted by Chemical Fertilizer

分析了化肥对土壤环境产生的不良影响;增加土壤重金属与有毒元素;导致土壤硝酸盐积累;破坏土壤结构,促进土壤酸化;降低土壤微生物活动。提出了防治措施;强化环境保护意识,加强土壤肥料的监测和管理;增施有机肥;推广配方施肥技术;施用硝化抑制剂;改进施肥方法。

The paper analyzed the soil pollution in the farmland affected hy chemical fertilizer,which included increasing the quantity of heavy metal and poisonous elements, causing the accumulation of the nitrates in the soil, destroying the soil structure, promoting the soil acid, reducing the soil microorganisms and the movement of them. Based on the current analysis, the paper put forward the countermeasures, which included strengthening the consciousness of environmental protection and the monitoring and management of the soil fertilizer, using organic fertilizer, popularizing the technology of applying fertiliz- er, using the nitrify inhibitor, improving the way of using chemical fertilizer,