一九八三年秋至一九八四年夏,华中农学院驻京山县永兴基点配合县土肥站及孙桥、永兴两区农技站试办了大面积小麦配方施肥示范三万余亩,并在永兴、苏余畈两大队定点示范16户,面积29.5亩,为了配方施肥的深入发展,以及为大面积应用提供科学依据,同时还在永兴,孙桥两区四种主要类型土壤上进行了小麦的小区试验。 Autumn from the autumn of 1983 to the summer of 1984, Huazhong Agricultural College in Jingshan County Yongxing base with the county soil fertilizer station and Sunqiao, Yongxing two agricultural technology station pilot large-scale wheat formula fertilizer demonstration of more than thirty thousand Mu, and in Yongxing, Su Yuzhu two brigades fixed-point demonstration 16 households, an area of ​​29.5 acres, in order to formulate further development of fertilizer, and provide scientific basis for large-scale applications, but also in Yongxing, Sunqiao two main four districts Type of soil on a wheat plot test.