欢迎访问《中国农学通报》，
中国农学通报

中国农学通报 ›› 2005, Vol. 21 ›› Issue (2): 109-109.

所属专题： 油料作物

• 目次 • 上一篇    下一篇

密度对超高产春大豆农艺性状的影响研究

翟云龙,章建新,薛丽华,李 宁   

  • 出版日期:2005-02-05 发布日期:2005-02-05

Study on the Effect of Plant Density on the Agronomic Characters of Super-high Yield Spring Soybean

Zhai Yunlong, Zhang Jianxin, Xue Lihua, Li Ning   

  • Online:2005-02-05 Published:2005-02-05

PDF (PC)

619

摘要： 研究了超高产条件下，不同种植密度对春大豆植株性状、产量性状和产量的影响以及单株叶面积和叶面积指数变化特点。结果表明，随密度的增加，株高和底荚高度增高，茎粗、节数、分枝数、分枝总长度降低，倒伏加重，单株有效结荚数、单株粒数、单株籽粒重降低，百粒重与种植密度关系不显著。叶面积指数随密度增加呈上升趋势，以45.0万株/hm2处理最佳，产量达5547.81kg/hm2。

Abstract: The effect of plant density on the plant character, yield character and yield, the trait of changing trends of the leaf area per plant and leaf area index（LAI）were studied under the condition of super-high yield in this experiment. The result showed that plant height and the height of bottom pods were heightened along with the increase of density. The thickness of stalk, nods, branch of No., length of branch reduced along with the increase of density. The lodging on soybean was sharpened along with the increase of density. The No. of effectual pods and seeds per plant, seed weight per plant reduced along with the increase of density. The relation of 100 seeds weight and plant density wasn’t prominent. LAI increased along with the increase of density. The comprehensive performance of 45.0 plants per ha was the best, with the yield per ha 5547.81kg.