典型文献
Heavy soil drying during mid-to-late grain filling stage of the main crop to reduce yield loss of the ratoon crop in a mechanized rice ratooning system
文献摘要：
Yield loss (YLoss) in the ratoon crop due to crushing damage to left stubble from mechanical harvesting of the main crop is a constraint for wide adoption of mechanized rice ratooning technology. Soil drying before the harvest of the main crop has been proposed to overcome this problem. The objective of this study was to determine the effect of soil drying during the mid-to-late grain filling stage of the main crop on grain yield of the ratoon crop in a mechanized rice ratooning system. Field experiments were con-ducted to compare YLoss between light (LD) and heavy (HD) soil drying treatments in Hubei province, cen-tral China in 2017 and 2018. YLoss was calculated as the percentage of yield reduction in the ratoon crop with the main crop harvested mechanically, relative to the grain yield of the ratoon crop with the main crop harvested manually. In comparison with LD, soil hardness was increased by 42.8％–84.7％in HD at the 5–20 cm soil depth at maturity of the main crop. Soil hardness at 5 and 10 cm depths reached respec-tively 4.05 and 7.07 kg cm 2 in HD. Soil drying treatment did not significantly affect the grain yield of the main crop. Under mechanical harvesting of the main crop, HD increased the grain yield of the ratoon crop by 9.4％relative to LD. Consequently, YLoss was only 3.4％in HD, in contrast to 16.3％in LD. The differences in grain yield and YLoss between the two soil drying treatments were explained mainly by panicles m?2, which was increased significantly by HD in the track zone of the ratoon crop compared with LD. These results suggest that heavy soil drying practice during the mid-to-late grain filling stage of the main crop is effective for reducing YLoss of the ratoon crop in a mechanized rice ratooning system.
文献关键词：
中图分类号：
作者姓名：
Chang Zheng;Yuechao Wang;Shen Yuan;Sen Xiao;Yating Sun;Jianliang Huang;Shaobing Peng
作者机构：
National Key Laboratory of Crop Genetic Improvement,Hubei Hongshan Laboratory,MARA Key Laboratory of Crop Ecophysiology and Farming System in the Middle Reaches of the Yangtze River,College of Plant Science and Technology,Huazhong Agricultural University,Wuhan 430070,Hubei,China
文献出处：
引用格式：
[1]Chang Zheng;Yuechao Wang;Shen Yuan;Sen Xiao;Yating Sun;Jianliang Huang;Shaobing Peng-.Heavy soil drying during mid-to-late grain filling stage of the main crop to reduce yield loss of the ratoon crop in a mechanized rice ratooning system)[J].作物学报（英文版）,2022(01):280-285
A类：
ratooning,YLoss
B类：
Heavy,soil,drying,during,mid,grain,filling,stage,crop,reduce,yield,loss,mechanized,rice,system,Yield,due,crushing,damage,left,stubble,from,harvesting,constraint,wide,adoption,technology,Soil,before,has,been,proposed,overcome,this,problem,objective,study,was,determine,Field,experiments,were,ducted,between,light,LD,heavy,HD,treatments,Hubei,province,tral,China,calculated,percentage,reduction,harvested,mechanically,relative,manually,In,comparison,hardness,increased,by,maturity,depths,reached,respec,tively,did,not,significantly,affect,Under,Consequently,only,contrast,differences,two,explained,mainly,panicles,which,track,zone,compared,These,results,suggest,that,practice,effective,reducing
AB值：
0.328267
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机标中图分类号，由域田数据科技根据网络公开资料自动分析生成，仅供学习研究参考。
