控释尿素在冬小麦上的一次性施肥节肥增效研究  

Single Basal Fertilization of Controlled Release Urea in Winter Wheat

作　　者：杨焕焕 孙克刚 张琨[2,3] 和爱玲[1] 杜君[1] 

机构地区：[1]河南省农业科学院植物营养与资源环境研究所/河南省农业生态与环境重点实验室,郑州450002 [2]河南农业大学农学院,郑州450002 [3]河南省农业科学院小麦研究所,郑州450002

出　　处：《河南科学》2017年第11期1797-1800,共4页Henan Science

基　　金：华北平原小麦-玉米轮作区高效施肥技术研究与示范(2015BAD23B02);农业部行业专项"主要粮食作物一次性施肥技术研究与示范"(201303103);河南省财政预算项目"氮肥增值提效及高效施用技术研究与应用"

摘　　要：在驻马店市砂姜黑土上进行冬小麦田间试验,研究控释尿素在小麦上一次性施肥技术.结果表明:与只施用磷钾肥相比,施用控释尿素可显著提高小麦产量,增产幅度为19.4%~41.7%;两个试验点产量达到最高的试验处理均为控释尿素全部一次性基施处理,分别达到7 333.0 kg/hm^2和7 621.0 kg/hm^2,与优化施肥处理相比提高76.5 kg/hm^2和249.0 kg/hm^2;在最佳施氮量的基础上减施20%的氮肥显著提高了小麦产量,说明与农民习惯施肥相比可降低20%的施氮量.In 2013, in this paper the field experiment was conducted on the winter wheat field in lime concretion black soil region of Zhumadian to study the effect of urea treatment on wheat. The results showed that compared with the application of only phosphorus and potassium fertilizer, the application of controlled-release urea significantly increased the yield of wheat by 19.4% to 41.7%. The yield of the two test sites was 7 333.0 kg/hm2 and 7 621.0 kg/hm2 comparing with 76.5 kg/hm2 and 249.0 kg/hm2. The reduction of 20% nitrogen fertilizer on the basis of the best nitrogen application rate could significantly increase wheat yield, which indicated that 20% nitrogen content could be reduced by applying with controlled release urea.

关 键 词：冬小麦 一次性施肥 控释尿素 产量 氮素利用率 田间试验 

分 类 号：S143.1[农业科学—肥料学]