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省农科院士肥所多年研究表明,我省蔬菜瓜果的主要污染源70％来自化肥,氮、磷、钾的有效利用率分别为30％、20％和35％,这不仅造成了极大的浪费,而且大量没被吸收的化肥以不同途径进入地下水、地表水和空气,使宝贵的地下水资源面临严重污染的威胁。直接结果是导致土壤板结、肥力下降、农产品品质下降,严重影响农业的可持续发展。
Provincial Academy of Agricultural Sciences fertilizer for many years of research shows that the province of vegetables and fruits of the main sources of pollution from 70% of fertilizer, nitrogen, phosphorus and potassium utilization were 30%, 20% and 35%, which not only caused great Of waste, and a large number of unabsorbed fertilizers enter the groundwater, surface water and air in different ways, threatening the precious pollution of precious groundwater resources. The direct result is soil compaction, fertility decline, decline in the quality of agricultural products, seriously affecting the sustainable development of agriculture.