华北农学报Issue(5)：231-238,8.
不同种植模式对夏玉米光能利用率和产量的影响
Effect of Different Planting Patterns on Radiation Use Efficiency and Yield of Summer Maize
摘要
Abstract
The radiation-use efficiency ( RUE) increased is very important factor increases maize yield .Differ-ent planting patterns must effect yield and RUE of summer maize .In order to explore how to improve the RUE and increase the yield of maize ,the test of different plant spacing on the yield and RUE of corn is studied .Experiments is in the Chinese Academy of Sciences Luancheng test station in 2012,and Xianyu 335 and Zhengdan 958 of two varieties are used that is in common in this area .Experiments are set 20 cm+100 cm,40 cm+40 cm,60 cm+60 cm,40 cm+80 cm of 4 row levels,in addition to density of the 40 cm+40 cm for 6.2 ×104 plants/ha,other density for 7.5 ×104 plants/hm2 .The results show that:leaf area index in the 60 cm+60 cm treatment of Zhengdan 958 is higher 5%-20% than in the other three treatments , Xianyu 335 higher 5%-17%;In the whole growth period RUE in the 60 cm+60 cm treatment of two varieties were higher than other treatments ranged from 10%to 30%;The total dry matter in the 60 cm+60 cm treatment of Xianyu335 is higher 10%-30% than in the other three treatments,Zhengdan958 higher 17%-25%;Harvest index and dry matter mass transfer rate of 60 cm+60 cm treatment of two varieties were also significantly higher than other treatments , thus improving the yield .Analysis shows that the solar radiation and temperature are main meteorological factors effect yield of summer maize ,and ra-diation-use efficiency is affected by the temperature effect .关键词
玉米/行距/光能利用率/产量Key words
Maize/Row spacing/RUE/Grain yield分类
农业科技引用本文复制引用
崔晓朋,郭家选,刘秀位,张喜英,孙宏勇..不同种植模式对夏玉米光能利用率和产量的影响[J].华北农学报,2013,(5):231-238,8.基金项目
国家科技计划课题（2012BAD05B02；2013BAD11B03）；“十二五”科技支撑项目 （）
