Excess fertilization in facility cultivation brought high nitrate content in soil,led to secondary salinization,and caused continuous cropping obstacle.Thus,the sustainable development of facility agriculture was restricted.This paper summarized the research progress on status of nitrate accumulation in facility soil,reasons,potential risks and hazards.It also expounded the relation between nitrate and crops,and analyzed the related control measures.%设施栽培中,因过量施肥使得土壤硝酸盐含量过高,导致次生盐渍化,引起连作障碍,制约设施农业可持续发展.本文综述了设施土壤中硝酸盐积累现状、原因、潜在风险及危害等研究进展,阐述了硝酸盐与作物间的关系,并对相关防治措施进行了分析.
展开▼
