论文部分内容阅读
水稻密植的目的,主要是增加单株数目,来扩大绿色面积,提高单位面积上有效穗数,达到增产。如果单位面积上水稻单株数目增加得过多,使供应单株生长发育所需要的外界环境条件,如养分、光照等不足,其结果单株生长发育不良,因而也就不能增产。密植是水稻增产的主要措施,密植以后为了
The purpose of close planting of rice is to increase the number of individual plants to expand the green area and increase the effective panicle per unit area to increase production. If the number of rice plants per unit area increased too much, so that the supply of plant growth and development required by the external environmental conditions, such as nutrients, light and other deficiencies, the results of poor growth and development of individual plants, and therefore can not increase production. Close planting is the main measure of rice yield, dense planting in order later