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| 南昌杂交稻需氮量与氮利用率的研究 | |
| 引用本文： | 陈竹林,陈红萍,黄英洪,杨磊,陈大洲.南昌杂交稻需氮量与氮利用率的研究[J].江西农业学报,2009,21(12):49-51. |
| 作者姓名： | 陈竹林 陈红萍 黄英洪 杨磊 陈大洲 |
| 作者单位： | 1. 江西省农业科学院,水稻研究所,江西,南昌,330200 2. 江西省武宁县农业技术推广中心,江西,武宁,332300 3. 江西省萍乡市种子管理局,江西,萍乡,337000 |
| 基金项目： | 国家水稻产业技术体系项目 |
| 摘 要： | 杂交早稻和晚稻的需氮量与N利用率的试验结果表明:最适宜氮肥施用量为157.5 kg/hm2(纯N),表现为N肥利用率较高,单产水平较高。不施氮肥处理的产量下降1380~3015 kg/hm2。 |
| 关 键 词： | 杂交早稻 杂交晚稻 需N量 N肥利用率 产量 |
Studies on Nitrogen Requirement and Nitrogen Utilization Efficiency of Hybrid Rice in Nanchang |
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| CHEN Zhu-lin,CHEN Hong-ping,HUANG Ying-hong,YANG Lei,CHEN Da-zhou.Studies on Nitrogen Requirement and Nitrogen Utilization Efficiency of Hybrid Rice in Nanchang[J].Acta Agriculturae Jiangxi,2009,21(12):49-51. | |
| Authors: | CHEN Zhu-lin CHEN Hong-ping HUANG Ying-hong YANG Lei CHEN Da-zhou |
| Abstract: | The results of field experiment in the nitrogen requirement and nitrogen utilization efficiency of hybrid early rice and late rice showed that the optimal application rate of pure nitrogen was 157.5 kg/hm2;under this condition,the nitrogen utilization efficiency and per unit area yield were higher.The rice yield in the treatment without nitrogen fertilizer application was decreased by 1380 ~ 3015 kg/hm2. |
| Keywords: | Hybrid early rice Hybrid late rice Nitrogen requirement Utilization efficiency of nitrogen fertilizer Yield |
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