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《Journal of Triticeae Crops》 2009-05
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Effect of Tillage and Fertilization on Yield Components and Physiological Characteristics in Leaves of Winter Wheat

LI Chun-xi,HU Guo-xian,JIANG Li-na,SHAO Yun,LI Dong-fen,ZHENG Dong-yun,WANG Yan-jing (College of Life Sciences,Henan Normal University,Xinxiang,Henan 453007,China)  
In order to make clear of the rational model of tillage and fertilization in the middle of Henan province.This study was carried out at the ecological environment of middle Henan provience,with deep tillage(30 cm) and low tillage(20 cm),fertilizing with chemical fertilizer and chemical fertilizer with organic,the effects of tillage and fertilization on yield components and physiological characteristics of winter wheat were studied.The results showed that there were no difference in spike number among different treatments,and the difference of grains per spike was significant(P0.05);And 1000-kernel weight in treatment of chemical fertilizer with dried poultry litter with shallow tillage was highest,and that in treatment of chemical fertilizer with dried poultry litter with deep tillage was lowest,and difference was significant at(P0.01).The results showed that the theoretical yield of chemical fertilizer with cottonseed cake under deep tillage was the highest,while that of chemical fertilizer with shallow tillage was the lowest,and the difference was significant(P0.05).Tillage and fertilaze had significant influence on theoretical yield(F=2.946*),and fertilizer had significant influence on theoretical yield(F=5.146*).In the stage of middle grain-filling,tillage and fertilaze had significant influence on total chlorophyl content(F=5.474*),nitrate reductase activity(F=7.46**) and soluble sugar(F=6.168*).There were positive correlation between chlorophyll content and 1000-kernel weight,and there were negative correlation between nitrate reductase activity and chlorophyll content;and there were positive correlation between soluble sugar and nitrate reductase activity,and negative correlation between nitrate reductase activity and 1000-grain weight in middle filling.It showed that deep tillage with chemical fertilizer mixed cottonseed was the best model of tillage and fertilization.
【Fund】: 国家“十一五”科技支撑计划项目“粮食丰产科技工程“项目子课题(2006BAD02A07-3)
【CateGory Index】: S512.1
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