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通过对阜阳市国家级耕地地力监测点8年来的作物产量、肥料施用情况和土壤主要养分属性状况分析,可以看出无肥区和农户常规施肥区,土壤有机质、碱解氮、有效磷、速效钾含量均表现下降趋势;无肥区耕地土壤养分状况和粮食产量下降较常规施肥区更为明显;农户在施肥中存在盲目性,施肥结构不合理,耕地地力退化,作物对肥料的依赖性增大。要实现农业的可持续发展,到2020年化肥施用量零增长,必须提高农户的用地养地意识,注重耕地地力保护与提升,做到有机肥、化肥的配合施用。
Through the analysis of crop yield, fertilizer application status and major nutrient attributes in 8-year monitoring points of cultivated land productivity in Fuyang City, it can be seen that there is no significant difference between conventional fertilization area and conventional fertilization area, soil organic matter, available nitrogen, available phosphorus, Potassium content showed a downward trend; soil nutrient status and grain yield decline in the arable land was more obvious than conventional fertilization area; farmers in the fertilization there is blindness, irrational fertilization structure, degradation of arable land, crop dependence on fertilizer by Big. To achieve sustainable development of agriculture, by 2020, there will be zero growth of chemical fertilizer use. It is necessary to raise farmers’ awareness of land-use conservation and pay attention to the protection and improvement of cultivated land fertility so as to achieve the combination of organic fertilizers and chemical fertilizers.