| 四川棉区施氮水平对棉花产量及效益的影响 |
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| 引用本文： | 岳福良,张相琼,张小军,李文均,张小红.四川棉区施氮水平对棉花产量及效益的影响[J].江西棉花,2011,33(6). |
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| 作者姓名： | 岳福良 张相琼 张小军 李文均 张小红 |
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| 作者单位： | 四川省农业科学院经济作物育种栽培研究所,四川,简阳,641400 |
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| 摘 要： | 在四川棉区研究不同氮肥施用水平时棉花产量及经济效益的影响.试验站果表明:在一定水平下.随着氮肥施用量的增加棉花株高、单株果节数和产量相应提高;当纯氮施用达到450kg/hm2时.其产量、经济效益达到最高,而当施用术达到600k/hm2时,其经济效益还低于零氮水平.在一定氮肥施用水平的基础上,配合施用一定数量有机肥料,其经济效益最高.
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| 关 键 词： | 氮肥施用水平 农艺性状 产量 经济效益 |
Effects of Nitrogen Levels on Cotton Yield and Effectiveness in Sichuan |
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| Yue Fuliang,Zhang Xiangqiong,Zhang Xiaojun.Effects of Nitrogen Levels on Cotton Yield and Effectiveness in Sichuan[J].Jiangxi Cottons,2011,33(6). |
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| Authors: | Yue Fuliang Zhang Xiangqiong Zhang Xiaojun |
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| Institution: | Yue Fuliang,Zhang Xiangqiong,Zhang Xiaojun(Institute of Industrial Crop Breeding and Culture,Sichuan Academy of Agricultural Science.,Jianyang 641400,China) |
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| Abstract: | In this paper effects of different nitrogen levels on cotton yield and effectiveness in Sichuan were studied.The results showed that cotton plant height,fruiting section number individual and yield increased by nitrogen level added.When nitrogen fertilizer reached 450 kg/ hm2,yield,economic benefit reached the maximum.Application levels reached 600 kg/hm2,its economic benefits was lower than zero nitrogen level.When organic fertilizer was application on the basis of a certain nitrogen fertilizer level,its e... |
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| Keywords: | Nitrogen level Agronomic trait Yield Economic benefit |
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