缓控释氮肥调控对花生产量及氮素吸收利用的影响

Effect of Controlled-release Nitrogen Fertilizer Adjustment on Peanut Yield and Nitrogen Absorption and Utilization

通过缓控释氮肥不同比例施用,研究缓控释氮素调控对花生产量与氮素吸收利用的影响。结果表明:氮、磷、钾肥等量施用条件下,加入缓控释氮素的施肥处理效果明显优于普通纯速效氮施肥处理。分析缓控释氮肥不同施用比例试验结果可知:45%缓控释氮+55%速效氮这一施用比例对花生产量、百公斤养分吸收量和氮肥利用率的影响极显著,平均增产40 kg/667 m^2以上,肥料利用率提高5%以上。

By using controlled-release nitrogen fertilizer in different ratio, the effect of controlled-release nitrogen fertilizer adjustment on peanut yield and nitrogen absorption and utilization was studied. The results showed that： nitrogen, under the conditions of phosphorus and potash fertilizer was applied equally, the effect of fertilizer mixed with controlled-release nitrogen was obviously superior to ordinary pure available nitrogen fertilizer. The test results after analyzing the controlled-release nitrogen fertilizer in different application ratio showed that： the ratio of 45% controlled-release nitrogen and 55% available nitrogen affects extremely significantly on peanut yield,amount of nutrient absorption per 100 kg and nitrogen use efficiency, an average increase production is above 40 kg/667 m^2, and utilization rate of fertilizer increases above 5%.