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棉花群体结构和单株形态结构与光照有着密切的关系。为了探讨如何改进棉花群体结构和单株形态结构,以提高光能利用率,1982年我们与省农业气象部门合作进行了棉田种植密度和单株形态结构与光能利用关系的研究。现将试验方法与结果简报如下。 一、试验设计和方法 本试验分别设2,000、3,000、4,000、5,000、6,000株五种不同密度处理,随机区组排列,株距依次为0.5,0.6、0.75、1、1.5尺,行距均为1.8尺,每厢2行,小区面积0.2亩,重复5次,试验面积共5亩。品种为鄂光棉,南北行向。 从棉花小封行开始,每个重复各选一个点作为定点测量点,每天测定棉株上、中、
Cotton population structure and single plant morphology and light are closely related. In order to explore how to improve the cotton population structure and morphological structure of individual plants in order to improve the utilization of light energy, we conducted a study on the relationship between the plant density and single plant morphological structure and light energy utilization in cotton fields in 1982 in cooperation with the provincial agricultural meteorological department. Now the test methods and results briefings are as follows. First, the experimental design and method The test were set to 2,000,3,000,4,000,5,000,6,000 five different density treatment, randomized block arrangement, spacing were 0.5,0.6,0.75,1,1.5 feet, spacing of 1.8 feet , 2 per car, community area of 0.2 acres, repeated 5 times, a total area of 5 acres of test. Variety for the E cotton, north-south line. Starting from the cotton small envelope, each repeated election of a point as a fixed point of measurement, determination of cotton plants on a daily basis,