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| 不同释放天数包膜控释尿素在春玉米上的应用研究 | |
| 引用本文： | 衣文平,屈浩宇,许俊香,刘亚平,赵玲,肖强,武良,曹兵,徐秋明. 不同释放天数包膜控释尿素在春玉米上的应用研究[J]. 核农学报, 2012, 26(4): 699-704 |
| 作者姓名： | 衣文平 屈浩宇 许俊香 刘亚平 赵玲 肖强 武良 曹兵 徐秋明 |
| 作者单位： | 1. 北京市农林科学院植物营养与资源研究所,北京,100097 2. 吉林省白城市洮北区农业技术推广站,吉林白城,137000 3. 中国农业大学资源与环境学院,北京,100193 |
| 基金项目： | 北京市科委项目，国家科技支撑项目 |
| 摘 要： | 通过对释放天数分别为30d、60d、90d的包膜控释尿素(CU)与普通尿素(U)配合一次性基施对春玉米产量、氮肥利用率、氮素累积量及经济效益的影响进行研究,以确定适合吉林省春玉米养分需求的包膜控释尿素。结果表明:在等氮量、控释氮素占总氮量30%的条件下,CU60、CU90与U配合(CUU2, CUU3)一次性基施相对于习惯施肥处理(CK2),玉米产量分别增加840和740kg/hm2,氮素总积累量分别增加16.2和14.3kg/hm2,氮肥利用率分别提高8.8%和7.7%,经济效益分别增加1651和1464元/hm2,其中,CUU2处理春玉米经济效益最好,经济效益提高11.1%。 |
| 关 键 词： | 春玉米 包膜控释尿素 氮肥利用率 产量 经济效益 |
| 收稿时间： | 2011-02-20 |
| 修稿时间： | 2011-06-04 |
APPLICATION OF DIFFERENT RELEASE DURATION CONTROLLED-RELEASE COATED UREA ON SPRING MAIZE |
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| YI Wen-ping,QU Hao-yu,XU Jun-xiang,LIU Ya-ping,ZHAO Ling,XIAO Qiang,WU Liang,CAO Bing,XU Qiu-ming. APPLICATION OF DIFFERENT RELEASE DURATION CONTROLLED-RELEASE COATED UREA ON SPRING MAIZE[J]. Acta Agriculturae Nucleatae Sinica, 2012, 26(4): 699-704 | |
| Authors: | YI Wen-ping QU Hao-yu XU Jun-xiang LIU Ya-ping ZHAO Ling XIAO Qiang WU Liang CAO Bing XU Qiu-ming |
| Affiliation: | 1(1.Institute of Plant Nutrition and Resource,Beijing Academy of Agriculture and Forestry Sciences,Beijing 100097; 2.Baicheng Academy of Agricultural Sciences,Baicheng,Jilin 137000; 3.College of Resources and Environmental Sciences,China Agricultural University,Beijing 100193) |
| Abstract: | Field experiment was conducted to study the effects of controlled-release coated urea combined with conventional urea on yield,nitrogen use efficiency,total nitrogen accumulation amount and economic benefits in maize.The fertilization treatments were applied at same nitrogen rates,namely: no nitrogen(CK1),farmer treatment(CK2),30% of CU30 and 70% of urea applied at pre-plant(CUU1),30% of CU60 and 70% of urea applied at pre-plant(CUU2),and 30% of CU90 and 70% of urea applied at pre-plant(CUU3).The results showed that CUU2 and CUU3 treatments were better than CK2 treatment,with 840 and 740kg/hm2 of maize grain yield increases,16.2 and 14.3kg/hm2 of total nitrogen accumulations amount increases,8.8% and 7.7% of nitrogen use efficiency increases,1651 and 1464yuan/hm2 of value increases,respectively.Comparison with other treatments,the economic benefits of CUU2 treatment was the best,showing 11.1% higher than CK2 treatment. |
| Keywords: | spring maize controlled-release coated urea nitrogen use efficiency yield economic benefits |
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