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摘要:
Weed management in summer season foxtail millet field was studied by evaluating weed damage and exploring competition between weeds and foxtail millet,and a few fitting models were simulated and compared by employing field plot experiment and nonlinear regression analysis.The results showed that the millet yield losses and weed density were extremely significantly correlated.Among the tested models,the determination coefficient (R 2) of hyperbolic model was 0.997 12,and minimum residual sum of squares was 16.174,which was considered the optimal model to simulate the competition relation between weeds and millet.The predicted equation was Y=d /(1.733 + 0.018d);the interspecific competitiveness of weeds was 0.577 0 and the intraspecific competitiveness was 0.010 3 ;the maximum loss rate of millet yield was 55.56%.This study had established an analysis model with high goodness-of-fit and practical prediction which could help weed management in summer season millet field.
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篇名 Study on Analysis Model of Millet Yield Loss Caused by Weeds in Summer Season Millet Field
来源期刊 Plant Diseases and Pests(植物病虫害研究:英文版) 学科 农学
关键词 产量损失率 杂草管理 拟合模型 谷子 损失分析 夏季 非线性回归分析 糜子
年,卷(期) 2013,(2) 所属期刊栏目
研究方向 页码范围 36-39
页数 4页 分类号 S435.111.4
字数 语种
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研究主题发展历程
节点文献
产量损失率
杂草管理
拟合模型
谷子
损失分析
夏季
非线性回归分析
糜子
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期刊影响力
Plant Diseases and Pests(植物病虫害研究:英文版)
双月刊
2152-3932
安徽省合肥市农科南路40号
出版文献量(篇)
726
总下载数(次)
2
总被引数(次)
0
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