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本项试验进一步查明青椒保护地栽培每1000平方米保留4600个主枝,采取每株保留2个主枝比每株保留4个主枝的增产幅度下限为13.6%.采取每枝保留2主枝,叶面积系数为4左右,保持了比较合理的群体结构,同时可使单位面积的根系持有量增加3.5%以上.并阐明根系数量和小区产量之间有密切的正相关关系.故此研究作物的群体结构不能局限于地上部,根系的数量和分布状况也是不可忽视的问题.
In this experiment, it was further identified that 4600 main branches were reserved per 1,000 square meters for the cultivated green pepper and the lower limit of increase rate was 13.6% for two main branches per plant and 4 main branches per plant, taking 2 Leaf area coefficient of about 4, to maintain a more reasonable population structure, while allowing the unit area of the root system to increase the amount of more than 3.5% .And clarify the root quantity and cell yield between the close positive correlation, so the study The colony structure of crops can not be limited to aboveground parts. The quantity and distribution of root systems are also issues that can not be ignored.