| 春玉米高产综合农艺措施最佳组合方案的研究 |
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| 引用本文： | 黄科延,戴平安,郑圣先.春玉米高产综合农艺措施最佳组合方案的研究[J].作物研究,2007,21(2):100-103. |
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| 作者姓名： | 黄科延 戴平安 郑圣先 |
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| 作者单位： | 长沙县干杉乡农业技术推广站 湖南长沙410134(黄科延)，湖南省土壤肥料研究所 长沙410125(戴平安，郑圣先) |
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| 摘 要： | 2005年在长沙采用5因素2次正交旋转回归设计方法,研究了不同密度和氮肥、磷肥、钾肥、有机肥(猪粪)不同施用量对春玉米产量与经济效益的影响。建立了中等肥力土壤上春玉米产量形成的函数模式,显示出5个因素对产量均有显著影响,其影响大小顺序为:氮>钾>密度>有机肥>磷。在本试验条件下,春玉米产量高于12 000 kg/hm2并具有最高经济效益的最佳农艺措施组合方案为:移栽密度90 000株/hm2,化学氮肥(N)420 kg/hm2,磷肥(P2O5)150 kg/hm2,钾肥(K2O)375 kg/hm2,有机肥22 500 kg/hm2。同时还研究了各因素间的互作效应及高产春玉米最佳农艺组合方案的各项目标函数指标值。
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| 关 键 词： | 春玉米 栽培 施肥 函数模型 产量 |
| 文章编号： | 1001-5280（2007）02-0100-04 |
| 修稿时间： | 2006-12-13 |
Study on Optimum Combined Scheme of High-yielding Agronomic Measures for Spring Corn |
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| HUANG Ke-yan,DAI Ping-an,ZHENG Sheng-Xian.Study on Optimum Combined Scheme of High-yielding Agronomic Measures for Spring Corn[J].Crop Research,2007,21(2):100-103. |
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| Authors: | HUANG Ke-yan DAI Ping-an ZHENG Sheng-Xian |
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| Institution: | 1. Agricultural Technique Extension Station of Gansha, Changsha County, Changsha,Hunan, 410134, China; 2. Hunan Soil and Fertilizer Institute, Changsha,Hunan, 410125; China |
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| Abstract: | Regressive method of orthogonal conic substitution with 5 factors had applied to study the effect of different planting density and different application rate of N,P2O5,K2O and organic manure on the grain yield and economic benefit of spring corn,and the simulation model of yield formation of spring corn in the medium fertility field was set up.This model showed that: All the tested factors affected yield significantly with the order of N>K2O>planting density>organic manure>P2O5.The optimum combined scheme of agronomic measures for high yield(more than 12 000 kg/hm2) and the highest economic benefit was obtained through simulating and optimalization: transplanting density of 90 000 plant/hm2,and N,P2O5,K2O and manure application at the rate of 420,150,375 and 22 500 kg/hm2,respectively.At the same time,the interactional effects among factors and the objective function indexes for optimum combined scheme of agronomic measures for high-yielding spring corn were studied. |
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| Keywords: | Spring corn Cultivation Fertilization Simulation model Yield |
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