肥东县直播油菜肥料利用率研究

Study on Fertilizer Utilization Rate of Direct Seeding Rape in Feidong County

[目的]摸清肥东县测土配方施肥提高氮肥、磷肥和钾肥利用率的效果,进而构建作物施肥模型。[方法]以油菜品种沣油737为试验材料,设置不同的配方施肥处理,研究不同施肥处理对油菜产量、肥料利用率和经济效益的影响。[结果]氮肥对油菜的产量影响最大,其次是磷肥,钾肥影响最小,氮、磷、钾肥利用率分别为40.50%、18.85%、47.46%;各施肥处理中,施用氮、磷、钾配方肥产量最高,纯收益最高。[结论]配方施肥对油菜有一定的增产效果,具体应用参数有待今后在生产应用中进一步验证。

[Objective]The aim of this study was to find out the effect of soil testing and formulated fertilization on improving the utilization rate of nitrogen,phosphorus and potassium fertilizers in Feidong county,and then to construct a crop fertilization model.[Method]With rape variety Fengyou 737 as test material,different formula fertilization treatments were set up to study the effects of different fertilization treatments on rape yield,fertilizer utilization rate and economic benefit.[Result]Nitrogen fertilizer had the greatest impact on the yield of rapeseed,followed by phosphate fertilizer,and potassium fertilizer had the least impact.The utilization rates of nitrogen,phosphorus and potassium fertilizers were 40.50%,18.85%and 47.46%,respectively.The treatment of applying nitrogen,phosphorus and potassium fertilizer had the highest yield and net income.[Conclusion]Formula fertilization had certain yield-increasing effect on rape,and the specific application parameters need to be further verified in the future production application.