Study on Analysis Model of Millet Yield Loss Caused by Weeds in Summer Season Millet Field

查看全文 作　　者：Lv [1]Peng;Duan [2]Xishun;Liu [3]Hongxia;Hou [1]Shenglin;Bo [1]Kuiyong;Wang [1]Xinyu;Xiang [1]Jinying;Ma [1]Xue;Jia [1]Haiyan;Zhou [1]Hanzhang

机构地区：[1]National Millet Improvement Center/Hebei Branch of National Sorghum Improvement Center/Millet Institute of Hebei Academy of Agricultural and Forestry Science/Key Laboratory of Minor Crops in Hebei Province;[2]Seed Management Station of Shijiazhuang;[3]Vocational and Technical Education Center of Shenze County

出　　处：《Plant Diseases and Pests》索引2013年第4卷第2期,共4页

基　　金：Supported by Science and Technology Support Program of Hebei Province(09250307D);Special Fund for Agro-scientific Research in the Public Interest (20120304201) 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. 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

相关文献

参考文献（15）
引证文献（0）
耦合文献（111）

参考文献(15)

耦合文献(111)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Study on Analysis Model of Millet Yield Loss Caused by Weeds in Summer Season Millet Field

参考文献(15)

耦合文献(111)

用户提示