水稻叶面积指数是生产和科学实验上常用的指标,它表示稻株绿叶总面积与栽培面积的比值。多年来的生产实践和科学实验证实,一般水稻品种亩产900斤以上的,在其生育期中群体结构比较合理的叶面积指数的动态大体是:分蘖期3左右,幼穗分化期至孕 Rice leaf area index is a commonly used indicator in production and scientific experiments, which indicates the ratio of the total area of ​​green leaves to the area under cultivation. Years of production practice and scientific experiments confirmed that the general rice varieties per mu yield of more than 900 pounds, in its growing population structure of the more reasonable leaf area index of the dynamic is generally: about 3 tillering stage, young panicle differentiation to pregnancy