›› 2011, Vol. 23 ›› Issue (5): 0-987.

• 环境科学 •    

控释掺混尿素对水稻产量、品质和氮肥利用率的影响

伍少福1,韩科峰2,吴良欢2,*,石其伟3 ,周永亮1,沈菁1,高兴友1,顾昊男1   

  1. 1绍兴市农业技术推广总站, 浙江 绍兴 312000;2教育部环境修复与生态健康重点实验室,浙江大学环境与资源学院, 浙江 杭州 310029; 3绍兴县农技推广中心, 浙江 绍兴 312000
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-09-25 发布日期:2011-09-25

Effects of application of controlled\|releasing bulk blending urea on yield, quality and nitrogen utilization efficiency of rice

WU Shao-fu;HAN Ke-feng;WU Liang-huan;*;SHI Qi-wei;ZHOU Yong-liang;SHEN Jing;GAO Xing-you;GU Hao-nan   

  1. 1Shaoxing Station of Agricultural Technique Popularization, Shaoxing 312000, China;2Ministry of Education Key Lab of Environmental Remediation and Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310029, China;3 Shaoxing Central Station of Agricultural Technique Popularization, Shaoxing 312000, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-09-25 Published:2011-09-25

摘要: 在田间条件下就控释掺混尿素对水稻产量、品质和氮肥利用率的影响进行了研究。结果表明,等氮全量条件下,水稻产量除CRBU+PU与PU1达到显著水平外,其余均无明显差异。减少30%氮肥用量条件下,控释掺混尿素(70%CRBU)显著减产,控释掺混尿素与尿素配施[70%(CRBU+PU)]无显著差异。CRBU+PU和70%(CRBU+PU)处理的氮肥利用率分别达39.6%和38.1%,差异显著;CRBU和70%CRBU利用率仅为30.9%和24.0%,差异不显著。CRBU+PU,CRBU还可提高稻米粗蛋白、糙米率和经济效益,其中CRBU+PU效果最为明显。

关键词: 水稻, 控释掺混尿素, 产量, 品质, 氮肥利用率

Abstract: Effects of application of controlled\|releasing bulk blending urea on rice yield, quality and nitrogen utilization efficiency were studied under the field conditions. At the same N rate, the differences of rice yield between each treatment were not significantly except for the treatment of CRBU+PU and PU1. Under the condition of reducing 30% N rate, rice yield of 70% CRBU was significantly deceased, but not for 70% (CRBU+PU). Nitrogen use efficiencies of CRBU, CRBU+PU, 70% CRBU and 70% (CRBU+PU) were 30.9%, 39.6%, 24.0% and 38.1%, respectively. Difference of nitrogen use efficiency between the treatments of CRBU+PU and 70% (CRBU+PU) were significant, but not between the treatments of CRBU and 70% CRBU. More economic benefits of rice and higher crude protein in the rice and brown rice rate were found in the treatment of CRBU+PU.

Key words: rice, controlled-release bulk blending urea, yield, quality, nitrogen use efficiency