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叶面积指数是植物合理利用光能,获取较高经济产量,有效地抑制病虫发生的一个综合性指标,在农业生产中具有重要指导作用。1、新方法的形成。棉花叶片为掌状裂形,并有较大的叶褶,难以套用近似的几何图形,作面积的近似值计算。常用的几种计算方法,仅适于实验室内少量离体叶片计
Leaf area index is a comprehensive index of rational use of light energy, access to higher economic yield, effectively inhibiting the occurrence of pests and diseases, which plays an important guiding role in agricultural production. 1, the formation of new methods. Cotton leaves are palmately lobed and have large leaf folds, making it difficult to apply approximate geometries for approximate area calculations. Several commonly used methods of calculation, only suitable for a small amount of isolated leaves in the laboratory meter