控释氮肥在玉米上的施用效果  

Effect of Applying Control Released Nitrogen Fertilizers on Maize

作　　者：尹彩侠[1] 孔丽丽[1] 侯云鹏[1] 秦裕波[1] 谢佳贵[1] 王秀芳[1] 张宽[1] 

机构地区：[1]吉林省农业科学院环境与资源研究中心,长春130033

出　　处：《吉林农业科学》2011年第4期24-27,共4页Journal of　Jilin Agricultural Sciences

基　　金：中加合作项目(IPNI)

摘　　要：通过大田试验,研究硫磺加树脂包膜控释尿素不同掺混比例在玉米上的施用效果。结果表明:玉米控释尿素最佳掺混比例为PCU50%+PU50%。PCU50%+PU50%处理的玉米产量最高,比其它施氮处理增产391 kg/hm2(3.5%)～1 535 kg/hm2(15.3%),达到显著水平,氮素利用率最高,达44.5%。The field experiment was carried out to study effect of applying different mixing ratio of the sulfur plus Resin-coated urea on maize.The results indicated that the optimum ratio was 50% PCU ＋ 50% PU.The yield with 50%PCU ＋ 50%PU treatment was the highest compared with the other treatments,which increased by 391kg/ha（3.5%） to 1535kg/ha（15.3%）,and whose utilization rate for N was the highest（44.5%）.

关 键 词：玉米 硫磺加树脂包膜尿素 施用效果 掺混比例 

分 类 号：S513[农业科学—作物学]