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由于盲目、过量不合理施肥造成化肥利用率降低,农产品品质下降,土壤农化污染日趋加剧。未经作物吸收利用的部分化肥则通过径流、淋溶、反硝化、吸附和侵蚀等不同方式进入大气或沉留于土壤中,从而引发温室效应、水体富营养化和地下水硝酸盐含量超标,威胁农产品质量安全,造成农业生态破坏。花生是迁安市主要
Due to blindness and excessive unreasonable fertilization, fertilizer utilization rate is reduced, the quality of agricultural products is declining, and agro-soil pollution is aggravating day by day. Some chemical fertilizers that have not been absorbed by crops enter the atmosphere or sediment into the soil through runoff, leaching, denitrification, adsorption and erosion, which lead to greenhouse effect, eutrophication of water bodies and excessive nitrate content in groundwater, threatening Quality and safety of agricultural products, resulting in the destruction of agricultural ecology. Peanut is the main Qian’an City