| 玉米栽培因子与水分利用效率模型研究初探 |
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| 引用本文： | 白莎,池宝亮,黄学芳,樊修武,樊文华.玉米栽培因子与水分利用效率模型研究初探[J].灌溉排水学报,2009(5). |
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| 作者姓名： | 白莎 池宝亮 黄学芳 樊修武 樊文华 |
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| 作者单位： | 山西农业大学资环学院;山西省农业科学院旱地农业研究中心;山西省农业科学院作物遗传研究所; |
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| 基金项目： | 国家863计划课题(2006AA100220); 山西省“十一五”科技攻关课题(2007031002-7) |
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| 摘 要： | 采用均匀试验设计和均匀设计极大值回归分析的方法,以先玉335为试验材料,研究了水肥等栽培因子对玉米水分利用效率的影响及其耦合效应。从多因素分析表明其影响顺序为:底钾(x5)>追氮(x6)>补水(x7)>密度(x2)>底氮(x3)>播期(x1)>追肥/补水生育期(x8)>底磷(x4)。在数学模型中,各栽培因子间耦合效应对玉米产量影响都达到了极显著水平,且在正效应中,底钾(x5)与追氮(x6)的耦合效应对玉米水分利用效率的影响最大。当播期为4月16日,密度为80959.6株/hm2,底施氮量为3.7 kg/hm2,底施磷量为1.2 kg/hm2,底施钾量为0.0056 kg/hm2,追施氮量为3.5 kg/hm2,补灌量为0.024 m3/hm2,在玉米6片展叶时追肥-补水,玉米水分利用效率达到理论最高值42.66 kg/(mm.hm2)。
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| 关 键 词： | 玉米水分利用效率 均匀设计 数学模型 栽培因子 耦合效应 |
Preliminary Study on Model of Cultural Factors and Water Utilization Efficiency of Maize |
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| BAI Sha,CHI Bao-lianga,HUANG Xue-fanga,FAN Xiu-wub,FAN Wen-hua.Preliminary Study on Model of Cultural Factors and Water Utilization Efficiency of Maize[J].Journal of Irrigation and Drainage,2009(5). |
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| Authors: | BAI Sha CHI Bao-lianga HUANG Xue-fanga FAN Xiu-wub FAN Wen-hua |
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| Institution: | BAI Sha1,CHI Bao-liang2a,HUANG Xue-fang2a,FAN Xiu-wu2b,FAN Wen-hua1(1.Resources and Environment College,Shanxi Agriculture University,Taigu 030801,China,2.Shanxi Academy of Agricultural Sciences a.Dryland Agriculture Research Center,b.Institute of Crops Genetics,Taiyuan 030031,China) |
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| Abstract: | The experiment was conducted to study the effect of water,fertilizer and other cultural factors on water utilization efficiency of maize and their coupling effect by uniform experiment design and uniform design maximum regression method using Xianyu335 as its experiment materials.By multiple factors analysis,the influence order is: base potassium(x5)>nitrogen topdressing(x6)>supplementary irrigation(x7)>planting density(x2)>base nitrogen(x3)>sowing date(x1)>growth stages of supplementary fertilizer and irri... |
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| Keywords: | water utilization efficiency of maize uniform design mathematical model cultural factors coupling effect |
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