涡阳县地处淮北平原中部,总面积2090km2,农业人口130万人,是个农业大县也是个用肥大县,年需各类肥料在20万吨以上,农民每年用于化肥的投入占整个农业生产资料投入的一半以上。长期以来,由于肥料施用不科学、投肥结构不合理,不仅造成了肥料利用率低、农业生产成本增加、资源浪费大等问题,而且还导致农作物抗逆能力下降、土壤养分失衡和环境污染严重等问题。测土配方施肥技术是农业部重点推广的农业先进技术,是当前农业发展新阶段,实现节本增效和实现农业持续发展的客观要求,也是农业技术产业化的主导技术。推广配方肥是测土配方施肥项目的重要组成部分,也是测土配方施肥 Guoyang County is located in the central part of Huaibei Plain, with a total area of ​​2,090km2 and an agricultural population of 1.3 million. It is an agricultural county and a large county with annual output of more than 200,000 tons of fertilizers. The annual input of fertilizers by farmers to the entire agriculture More than half of the means of production invested. For a long time, due to unscientific application of fertilizers and irrational structure of fertilizers, it not only resulted in problems of low utilization rate of fertilizers, increase of agricultural production costs and waste of resources, but also led to the decline of crop resilience, imbalance of soil nutrients and serious environmental pollution And other issues. The soil testing and formula fertilization technology is the advanced agricultural technology promoted by the Ministry of Agriculture. It is an objective requirement in the new stage of agricultural development, achieving the objective of saving costs and achieving sustainable development of agriculture. It is also the dominant technology of agricultural technology industrialization. Popularization of formula fertilizer is an important part of soil testing and fertilizer project, but also soil testing and fertilizer