控释尿素施用方法对冬小麦生长·产量的影响  

Effects of Application Methods of Controlled Release Urea on Growth and Yield of Winter Wheat

作　　者：刘飞[1] 周忠新[1] 李宝强[1] 李龙[1] 王靖[1] 孔令国[1] 樊青峰[1] 

机构地区：[1]山东省临沂市农业科学院,山东临沂276012

出　　处：《安徽农业科学》2014年第26期8973-8973,9032,共2页Journal of Anhui Agricultural Sciences

基　　金：国家小麦产业技术体系

摘　　要：[目的]为研究控释尿素不同施用方法在小麦生产中的效果。[方法]在180 kg/hm2施氮量条件下,研究了控释尿素2种不同施用方法对小麦分蘖动态及产量构成因素的影响。[结果]50%控释尿素作基肥+50%普通尿素作追肥,可以显著提高小麦穗粒数、穗数及产量,较农民习惯性施肥方式氮肥利用率有显著性提高;控释尿素全部作为基肥处理较基追比1∶1的普通尿素处理,产量无显著差异,但减少了小麦生产过程中的用工量。[结论]正确的施用控释尿素不但可以有效降低氮肥施用量,而且可以减少小麦生产过程中用工量。[ Objective ] The research aimed to study the effects of different application methods of controlled release urea on wheat production. [ Method] Under the condition of 180 kg/hm2 nitrogen fertilizer, the influences of two different application methods of the controlled release urea on tiller dynamic and yield of wheat were studied. [ Result] 50% controlled-release urea as base fertilizer and 50% urea as topdressing could sig- nificantly improve the grain number per spike, spike number and yield, and nitrogen use efficiency was improved significantly compared with farmer habitual fertilizer. Compared with the treatment of the ratio of base and topdressing 1： 1, controlled release urea as base fertilizer treatment had no significant difference in yield, but reduced the labor amount of wheat production. [ Conclusion] The correct application method of con- trolled release urea could effectively reduce the amount of nitrogen fertilizer, and reduce the labor amount in the production process of wheat.

关 键 词：控释尿素 施用方法 冬小麦 分蘖动态 产量构成因素 

分 类 号：S512[农业科学—作物学]