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通过对13个大豆品种的生长分析,根据Fourier级数,描述了冠层中叶量的垂直分布及其几何性状。株型可分为三类。每类又据株型参数分为几个亚型,同时,对不同株型建立了数学模式。根据Beer定律,计算了在田间条件下大豆冠层中光的垂直分布。研究结果指出,大豆冠层中光的垂直分布与禾本科有别。研究结果表明,大豆冠层中叶量最大层越低,则产量越高。
Through the analysis of the growth of 13 soybean varieties, according to the Fourier series, the vertical distribution of the middle canopy and its geometric characteristics were described. Plant type can be divided into three categories. Each type is divided into several subtypes according to plant type parameters, meanwhile, mathematical models are established for different plant types. According to Beer’s law, the vertical distribution of light in soybean canopy under field conditions was calculated. The results indicate that the vertical distribution of light in the canopy differs from those in the grass family. The results show that the lower the middle layer of soybean canopy, the higher the yield.