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| 超级杂交晚稻缓释氮肥最佳用量研究 | |
| 引用本文： | 周静,马国辉,龙继锐,陈敏,孙健,易祖凡,刘习中.超级杂交晚稻缓释氮肥最佳用量研究[J].磷肥与复肥,2009,24(1):80-82. |
| 作者姓名： | 周静 马国辉 龙继锐 陈敏 孙健 易祖凡 刘习中 |
| 作者单位： | 1. 湖南杂交水稻研究中心,湖南,长沙,410125;湖南农业大学,农学院,湖南,长沙,410128 2. 湖南杂交水稻研究中心,湖南,长沙,410125 3. 浏阳市永安农技站,湖南,浏阳,410323 4. 攸县农业局,湖南,攸县,412300 |
| 基金项目： | 湖南省农业重大专项基金 |
| 摘 要： | 采用集成栽培模式和农民习惯栽培模式，在5个施氮量的处理下，研究了缓释氮肥不同用量对超级杂交晚稻生长发育和产量的影响，并建立了产量与纯氮施用量的数学模型。结果表明：超级杂交晚稻的最佳施纯氮量和较经济的施纯氮量均为180kg／hm^2，此时2种栽培模式的产量均最高，分别为8．76和7．59t／hm^2， |
| 关 键 词： | 超级杂交晚稻 缓释氮肥 最佳施氮量 |
Study on the rate of slow- release nitrogen fertilizer for super hybrid late rice |
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| ZHOU Jing,MA Guo-hui,LONG Ji-rui,CHEN Min,SUN Jian,YI Zu-fan,LIU Xi-zhong.Study on the rate of slow- release nitrogen fertilizer for super hybrid late rice[J].Phosphate & Compound Fertilizer,2009,24(1):80-82. | |
| Authors: | ZHOU Jing MA Guo-hui LONG Ji-rui CHEN Min SUN Jian YI Zu-fan LIU Xi-zhong |
| Affiliation: | 1.Hunan Hybrid Rice Research and Development Center;Changsha;Hunan 410125;China;2.Agricultural School;Hunan Agricultural University;Hunan 410128;3.Agricultural Techniques Station of Yong'an;Liuyang;Hunan 410323;4.Agricultural Bureau of Youxian;Youxian;Hunan 412300;China |
| Abstract: | The effects of 5 different slow-release nitrogen fertilizer rates on the growth and grain yield of late rice are studied under 2 cultivation modes both of the conventional and the compositive cultivation,and the relationship of N rate and grain yield is deduced.The results show that the optimal N rate of 180 kg / hm2 is more economical,with the yield of compositive cultivation mode of 8.76 t / hm2 and yield of conventional cultivation mode of 7.95 t / hm2. |
| Keywords: | super hybrid late rice slow release nitrogen fertilizer optimal N rate |
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