| 稻鸭共育体系多因素正交旋转回归试验研究 |
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| 引用本文： | 汤颢军,曹凑贵,张似松,汪金平.稻鸭共育体系多因素正交旋转回归试验研究[J].湖北大学学报(自然科学版),2007,29(1):99-104. |
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| 作者姓名： | 汤颢军 曹凑贵 张似松 汪金平 |
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| 作者单位： | 华中农业大学植物科技学院，华中农业大学植物科技学院，湖北省农业技术推广总站，华中农业大学植物科技学院 湖北武汉430070，湖北省农业技术推广总站，湖北武汉430070，湖北武汉430070，湖北武汉430070，湖北武汉430070 |
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| 基金项目： | 国家粮食丰产科技工程重大专项项目(2004BA520A02)，湖北省重点攻关项目 |
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| 摘 要： | 以水稻种植密度、纯N量、放鸭数3个因子,设置5个水平组成正交旋转回归试验,试验数据分析显示,3个因子对水稻产量影响显著,影响的大小顺序是放鸭数>纯N量>密度,而且密度与纯N量的交互作用明显,纯N量与放鸭数之间的交互作用明显,都达到显著水平.通过方程模拟选优得出,密度在18万~25.5万株/hm2之间、纯N量在72.9~131.85 kg/hm2之间、放鸭数取225~360只/hm2之间,水稻单产可达到较高水平.
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| 关 键 词： | 稻鸭共育 二次正交旋转回归组合 产量 因子 |
| 文章编号： | 1000-2375（2007）01-0099-06 |
| 收稿时间： | 05 27 2006 12:00AM |
| 修稿时间： | 2006-05-27 |
Studies on effects of paddy yield using quadratic regression orthogonal rotational combining design in the rice-duck farming system |
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| TANG Hao-jun,CAO Cou-gui,ZHANG Si-song,WANG Jin-ping.Studies on effects of paddy yield using quadratic regression orthogonal rotational combining design in the rice-duck farming system[J].Journal of Hubei University(Natural Science Edition),2007,29(1):99-104. |
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| Authors: | TANG Hao-jun CAO Cou-gui ZHANG Si-song WANG Jin-ping |
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| Institution: | 1. College of Plant Science and Technology, Huazhong Agricultural University, Wuhan 430070; 2. Hubei Agri-technical Station, Wuhan 430070, China |
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| Abstract: | There are three factors in the five levels compositions orthogonal experiment: the density(X1),the pure N quantity(X2), tends ducks number(X3).Through computer assistance,observed three factors under five different horizontal fields to rice's output.According to the obtained data material: three factors are remarkable to the paddy rice on output influence,the influence size order is X3>X2>X1,the correlation between X1 and X2,X2 and X3 is obvious,which all achieves the remarkable level.Elects superiorly through the equation simulation and obtains the best level combinations of three factors,the density between 180 000 and 255 000/hm2 and the nitrogen between 72.9 and 131.85 kg/hm2 and tends ducks the number between 225 and 360/hm2. |
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| Keywords: | rice-duck farming system quadratic regression orthogonal rotational combining design yields factor |
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