水稻高产一直是人们努力的目标,决定产量的因素是叶面积的合理发展和群体的光合生产能力的提高,尤其是提高抽穗至成熟期的净光合产量,通过栽培措施提高适宜叶面积指数和合理的动态变化,一直是人们所注重的,近两年来研究了不同叶龄期适宜的叶面积指数和叶面积发展动态,以及影响因素,初步得到水稻高产群体叶面积动态类型及其超高产栽培途径。(一)水稻群体叶面积动态变化类型:根据作物普适生长函数:y=(k)/(1+e~(a+b+cx~2))方程,来模拟水稻生育进程群体叶面积的动态变化,用汕优63和盐粳2号试验资料进行拟合结果,配合效果极好,並导出汕优63、盐粳2号等主要生育期的群体叶面积增长 The high yield of rice has been the goal of people’s efforts. The factors that determine the yield are the reasonable development of leaf area and the improvement of photosynthetic production capacity of the population, especially the increase of net photosynthesis yield from heading to maturity, and the appropriate leaf area index The dynamics of leaf area index and leaf area at different leaf ages have been studied in recent two years and the influencing factors, and the dynamic types of leaf area and the methods of super-high-yielding cultivation of rice high-yielding population . (1) Dynamic changes of leaf area of ​​rice population Type: According to the general growth function of crop: y = (k) / (1 + e ~ (a + b + cx ~ 2)) equation to simulate the leaf area Dynamic changes, with Shanyou 63 and Yanjing 2 test data fitting results, with excellent results, and derived Shanyou 63, salt japonica 2 and other major growth stages of the population growth of leaf area