氮肥对向日葵的增产效果研究  

Research on Effect of Nitrogen Fertilizer on Sunflower Yield-increasing

作　　者：张喜印[1] 夏玉春[1] 殷福玉 孙自力 宋晓科[1] 姜立文[1] 

机构地区：[1]吉林省长岭县农业技术推广中心,吉林长岭131500 [2]长岭县新安镇农业站

出　　处：《现代农业科技》2011年第17期119-119,121,共2页Modern Agricultural Science and Technology

摘　　要：向日葵施用氮肥增产效果明显,增产幅度为28.8%～51.8%,施氮量以92～115 kg/hm2为宜。在氮肥的施用方法上,氮肥总量的1/3作底肥与2/3现蕾期追肥效果最明显。The yield-increasing effect about the application of nitrogen fertilizer on sunflower was obvious, the range of yield-increasing was from 28.8% to 51.8% ,the appropriate nitrogen volume was 92-115 kg/hm2. On the nitrogen fertilizing method ,the effect was the most obviously when using one-third of nitrogen total amounts as subsoil and two-thirds of nitrogen total amounts as additional ferlilizer, applied in squaring stage.

关 键 词：向日葵 氮肥 增产效果 

分 类 号：S143.1[农业科学—肥料学] S565.5[农业科学—农业基础科学]