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氮肥运筹对春玉米产量及经济效益的影响
引用本文:郭红梅,王宏庭,王斌,赵萍萍.氮肥运筹对春玉米产量及经济效益的影响[J].山西农业科学,2008,36(11).
作者姓名:郭红梅  王宏庭  王斌  赵萍萍
作者单位:1. 山西大学生物工程学院,山西,太原,030006
2. 山西省农业科学院土壤肥料研究所,山西,太原,030031
基金项目:国家科技支撑项目,中-加合作项目 
摘    要:通过田间试验研究了氮肥运筹对春玉米产量、经济效益的影响,结果表明:氮肥运筹对春玉米产量和经济效益影响显著,以1/2 N作基肥+1/2 N作追肥处理获得最高产量3752 kg/hm2和最大经济效益15234元/hm2,同时氮肥利用率达到42.1%。

关 键 词:氮肥运筹  玉米  产量  效益  氮肥利用率

Influence of the Distribution of Nitrogen Fertilizer Applied on Maize Yield and Net Income
GUO Hong-mei,WANG Hong-ting,WANG Bin,ZHAO Ping-ping.Influence of the Distribution of Nitrogen Fertilizer Applied on Maize Yield and Net Income[J].Journal of Shanxi Agricultural Sciences,2008,36(11).
Authors:GUO Hong-mei  WANG Hong-ting  WANG Bin  ZHAO Ping-ping
Abstract:This experiment was conducted to study the influence of the distribution of N fertilizer applied on maize yield and profit.The results showed that rational distribution of nitrogen fertilizer promoted higher yield and profit.The treatment of half of N rate as basal fertilizer combined with the half of N rate as topdressing got the highest yield 3 752 kg/hm2 and profit 15 234yuan/hm2,and the efficiency of nitrogen fertilizer use of 42.1%.
Keywords:Nitrogen application  Maize  Output  Benefit  N use efficiency
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