水稻的栽培技术实际是为了采用一切措施改善环境条件,特别是水稻抽穗后,使水稻最大限度地发挥光合能力,以合成更多的有机物质,也正是如何通过水稻的群体光合生产力而达到高产的目的。高产水稻除了培育壮秧和创造一个良好的土壤条件外,水稻的产量多少,与群体和个体有密切关系。可是群体与个体既互相促进又互相制约,如果水稻本田插秧穴数过多,密度过大,或是水稻前期水、肥促得过早长势过旺,群体过大,势必导致田间光照不足,个体营养条件变差,影响到个体发育 Rice cultivation technology is actually to take all measures to improve environmental conditions, especially after heading rice, make rice maximize photosynthetic capacity to synthesize more organic matter, but also exactly how the photosynthetic productivity of rice to achieve high yields the goal of. In addition to cultivating strong seedlings and creating a good soil condition, the yield of rice is closely related to the population and the individual. However, both groups and individuals promote each other and restrict each other. If the number of rice Honda planting too many points, the density is too large, or pre-rice water and fertilizer to promote premature growth too much, the group is too large, it will inevitably lead to inadequate lighting in the field, the individual Poor nutrition, affecting individual development