摘要
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%.
作者
陶姝宇
TAO Shuyu(Soil and Fertilizer Administration of Liaoning Province, Shenyang 110034, China)
出处
《农业科技与装备》
2016年第10期1-3,6,共4页
Agricultural Science & Technology and Equipment
关键词
缓控释氮肥
花生
产量
肥料利用率
controlled-release nitrogen fertilizer
peanut
yield
utilization rate of fertilizer