1985年,东沟县十字街乡受大风袭击,水稻大面积倒伏.水稻产量大受影响.为了搞清水稻倒伏原因,我们对十字街乡所有倒伏田块进行了调查分析,结果是:1.密度过大,穴株数过多这个问题是当前影响水稻产量提高的主要问题之一,也是引起倒伏的重要原因.由于插秧密度过大,群体发育过大,封行过早,个体发育不足,植株生长细弱瘦小,单株 In 1985, the crossroads of Donggou County were struck by strong winds and the rice was lopsided in a large area, yielding a great impact on the yield of rice.In order to find out the reasons for the rice lodging, we conducted a survey and analysis of all the lodging plots in Cross Street Township. The results were: 1. Density is too large and the number of holes is too much is one of the main problems that affect the yield of rice at present and is also one of the main causes of lodging.Due to the density of transplanting, population growth is too large, premature closure, individual development is poor, Thin and thin growth, single plant