测土配方施肥在水稻上的应用技术研究初报

根据作物的需肥规律、土壤的供肥性能与肥料效应,配以有机肥,确定氮、磷、钾和中微量元素肥料的适宜用量和比例,既能提高肥料的利用率,获得增产,又能改善农产品的质量,提高农业经济效益、生态效益和社会效益,做到用地与养地兼顾,实现农业的可持续发展。小区试验结果显示,测土配方施肥各处理,较常规施肥增产稻谷6.8%￣20.2%,增收89.2￣258.4元/667m2,土壤有机质、碱解氮、速效磷、速效钾含量均有不同程度提高。

Primary Study on Applied Techniques of Measuring Soil,Making Formula and Fertilizing in Rice

According to crop fertilizer uptake law, soil fertilizer supply function and fertilizer efficiency, the suitable N, P, K, and medium and trace fertilizer applying amount and ratio can not only increase fertilizer utilization efficiency, improve high yield and enhance the quality of farming products and economic, ecological and social benefit, but also realize conservative use of land and continuous development of agriculture. Plot research experiment showed that measuring soil, making formula and fertilizing technique can increase grain yield by 6.8%~20.2%, and benefits by 89.2~258.4 yuan RMB per 667 m2; otherwise, the contents of organic matter, alkaline hydrolytic N, rapidly available P, and rapidly available K in soil were increased to some extent.