控释肥料基施及普通尿素不同基追比对夏玉米产量及氮肥利用率的影响  

Effect of Application of Base Controlled Release Fertilizers and TopDressing of Various Proportions of Ordinary Urea on Yield of Summer Cornand Utilization Ratio of Nitrogenous Fertilizers

作　　者：孙克刚[1] 张欣[2] 李丙奇[1] 刘京宝[3] 和爱玲[1] 

机构地区：[1]河南省农业科学院植物营养与资源环境研究所,郑州450002 [2]河南省信阳市农业局信息中心,464000 [3]河南省农业科学院粮食作物研究所,郑州450002

出　　处：《化肥工业》2011年第6期20-22,共3页Chemical Fertilizer Industry

基　　金："十一五"国家科技支撑计划(2006BAD10B07);河南省科技攻关项目(0921021100410;91100910100;102101110300);国际植物营养研究所(IPNI)北京办事处和金正大集团公司资助

摘　　要：研究了控释尿素和控释BB肥一次性基施后的肥料效果,以及普通尿素不同基追比对玉米产量和氮肥利用率的影响。研究结果表明:以33.3%普通尿素基施+33.3%大喇叭口期追施+33.3%抽雄期追施的处理最佳,产量最高达8 700 kg/hm2,氮肥利用率为34.3%。控释尿素基施处理和控释BB肥基施处理的氮肥利用率分别为41.7%和44.1%,均高于施用普通尿素的各处理,且控释BB肥基施处理的氮肥利用率高于控释尿素基施处理。A study is made of the fertilizer effect of base application once of controlled release urea and bulk blending （BB） fertilizers as well as various proportions of top dressing of ordinary urea on corn yield and utilization ratio of nitrogenous fertilizers. The results show that the best treatment method is the use of base application with 33.3% ordinary urea plus top dressing with 33.3% at big trumpet period plus top dressing with 33.3% in tasseling period, the highest yield is 8 700 kg/hm2, and the utilization ratio of the nitrogenous fertilizers is 34.3%. When controlled release urea and controlled release BB fertilizers are base applied, the nitrogen fertilizer utilization ratio is 41.7% and 44.1%, respectively, higher than various treatments with ordinary urea, and the utilization of base applied controlled release BB fertilizers is higher than that of base applied controlled release urea.

关 键 词：玉米 控释肥料 氮肥基追比 产量 氮肥利用率 

分 类 号：S143.1[农业科学—肥料学]