论文部分内容阅读
通过玉米不同种植密度的对比试验,探索云南省西双版纳地区玉米适宜的种植密度,结果表明:随着种植密度的增加,玉米穗长、千粒重、出籽率均呈下降趋势,而株高、穗位高、倒伏率、秃尖呈增加趋势,倒伏比例加大,推荐紧凑大棒型品种正大615的最佳种植密度为4500株/666.7m2。
Through comparing the different planting density of maize, the suitable planting density of maize in Xishuangbanna of Yunnan Province was explored. The results showed that the ear length, the 1000-grain weight and the seed-yield rate of maize decreased with the planting densities increasing. High, the lodging rate, bald tip showed an increasing trend, the proportion of lodging increased, recommended a compact rod-shaped varieties Chia Tai 615 optimal planting density of 4500 / 666.7m2.