| 栽培密度和氮磷施肥水平对陇薯7号产量的影响 |
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| 引用本文： | 陈富,陆立银,谢奎忠,张武.栽培密度和氮磷施肥水平对陇薯7号产量的影响[J].黑龙江农业科学,2012(7):43-47. |
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| 作者姓名： | 陈富 陆立银 谢奎忠 张武 |
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| 作者单位： | 1. 甘肃一航薯业科技发展有限责任公司,甘肃兰州,730070
2. 甘肃省农业科学院马铃薯研究所,甘肃兰州,730070 |
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| 基金项目： | 国家发改委陇薯系列马铃薯脱毒种薯冷链物流资助项目 |
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| 摘 要： | 为优化陇薯7号生产栽培技术,采用二次通用旋转设计,研究了陇薯7号产量与栽培密度、施氮量及施磷量的定量关系,建立了以陇薯7号产量为目标函数的数学模型,解析了各因子对产量的主效应及互作效应。结果表明:建立的回归模型达显著水平,且拟合性较好。各栽培因子对陇薯7号产量的影响为:栽培密度>氮>磷,各因子间交互作用较大。经模拟寻优,确定了陇薯7号在甘肃中部半干旱地区产量各栽培因子优化组合方案:栽培密度为43 980～47 190株.hm-2,施氮量122.85～163.65kg.hm-2,施磷量102.00～138.90kg.hm-2。
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| 关 键 词： | 陇薯7号 栽培密度 施肥水平 通用旋转设计 |
Effects of Planting Density, Nitrogen and Phosphorus Fertilizer Applied on the Tuber Yield of Longshu No. 7 |
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| CHEN Fu,LU Li-yin,XIE Kui-zhong,ZHANG Wu.Effects of Planting Density, Nitrogen and Phosphorus Fertilizer Applied on the Tuber Yield of Longshu No. 7[J].Heilongjiang Agricultural Science,2012(7):43-47. |
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| Authors: | CHEN Fu LU Li-yin XIE Kui-zhong ZHANG Wu |
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| Institution: | 1(1.Gansu Yi Hang Potato Industry and Technology Development Limited Company,Lanzhou,Gansu 730070;2.Potato Research Institute of Gansu Academy of Agricultural Sciences,Lanzhou,Gansu 730070) |
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| Abstract: | To optimize cultivation techniques of Longshou No.7,the relationship of yield and plant density,nitrogen fertilizers,phosphorus fertilizers was studied using general rotational regression design,and a mathematical model was established as the objective function of yield,the main effect and interactive effect of three factors to Longshu No.7 were analyzed.The results indicated that the established regression model with better anastomosis was significant,the factors affecting yield of Longshu No.7 were in such an order:plant density>nitrogen fertilizer>phosphorus fertilizer,and the interactive effect between planting density and nitrogen fertilizers,phosphorus fertilizers were significant.The optimum comprehensive practice of high tuber yield of Longshu No.7 was:nitrogen fertilizers122.85~163.65 kg·hm-2,phosphorus fertilizers 102.00~138.90 kg·hm-2,plant density 43 980~47 190plant·hm-2. |
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| Keywords: | Longshu No 7 tuber yield plant density fertilizer application general design of relational regression |
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