玉米秸秆还田与施氮方式对小麦产量及其构成的影响  

Effects of Corn Straw Returning to Field and N Application Way on Wheat Yield and Components

作　　者：董爱民[1] 王映红[2] 盛坤[2] 杨丽娟[2] 董昀[2] 

机构地区：[1]河南省辉县市农业局,河南辉县453600 [2]河南省新乡市农业科学院,河南新乡453000

出　　处：《安徽农业科学》2016年第9期35-36,共2页Journal of Anhui Agricultural Sciences

基　　金：现代农业产业技术体系建设专项(CARS-3-2-35)

摘　　要：[目的]研究玉米秸秆还田和施氮方式对小麦产量及其构成的影响。[方法]在玉米秸秆还田的情况下,采用随机区组设计,连续4 a定点试验,研究在豫北潮褐土类小麦田,施氮方式及添加秸秆腐熟剂对小麦产量、群体、穗粒数、千粒重的影响,寻求最佳施氮方式。[结果]豫北潮褐土类小麦田,在施氮225 kg/hm^2水平下,以氮肥基追比5∶5+2 250 g/hm^2秸秆腐熟剂的施肥方式小麦产量和千粒重最高。[结论]氮肥基追比5∶5+2 250 g/hm^2秸秆腐熟剂为最佳小麦施肥方式。[Objective] The aim was to study effects of corn straw returning to field and N application way on wheat yield and components.[Method]Under the situation of corn straw returning to field,using random block design,fixed site experiment was conducted for 4 consecutive years,effects of N application way and adding straw decomposition agent on yield,group,grain number per spike,1 000-grain weight were studied to obtain the optimal N application method. [Result] In wheat field with moisture and brown soil in northern Henan Province,wheat yield and 1 000-grain weight was highest under the condition of applying N 225 kg/hm^2 and adding 5 ∶ 5 ＋ 2 250 g/hm^2 straw decomposition agent.[Conclusion]With N as base fertilizer topdressing 5∶ 5 ＋2 250 g/hm^2 straw decomposition agent is the optimum fertilizer application way.

关 键 词：施氮方式 小麦 产量 

分 类 号：S512.1[农业科学—作物学]