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为解决北京地区甜椒连年减产问题,作者从小气候效应和植株的生态生理效应的角度,对夏季撤棚后甜椒的遮光和整枝两项措施进行了研究。结果表明:用旧塑料膜和白窗纱遮光,可降低白天甜椒的叶温和果温;土温亦有明显降低。遮光使叶片变薄,单叶面积和叶面积系数增大,结合整枝,使单果重增加,病果率降低,有效产量和产值增高,与对照相比,有效产量增加39％(1984)和14％(1985)亩产值增加315％(1984)和50％(1985)。
In order to solve the perennial curtailment of sweet peppers in Beijing, the authors studied the shading and pruning of sweet peppers after shed shed in summer from the perspectives of microclimate effects and plant physiological and ecological effects. The results showed that shading with old plastic film and white window gauze could reduce the leaf temperature and fruit temperature of pepper during the day, and the soil temperature also decreased obviously. Light shading made the leaves thinner, single leaves area and leaf area coefficient increased, combined with pruning, so that the weight of fruit increased, fruit disease rate decreased, the effective yield and output value increased, compared with the control, the effective yield increased 39% (1984) and 14 % (1985) Output per mu increased 315% (1984) and 50% (1985).