以甜椒品种“红罗丹”为试材,以传统内添加型EVA膜为对照,研究了涂覆膜和试验型内添加EVA膜的透光保温性及其对甜椒生长、环境及产量的影响。结果表明:涂覆膜和试验型内添加EVA膜的透光性及保温性均高于传统内添加EVA膜;试验型内添加EVA膜的月平均气温、地温均最高,保温增温效果最好;涂覆膜的透光性能最好,气温日变化剧烈;涂覆膜和试验型内添加EVA膜分别比对照增产23.3%和10.2%。 Taking sweet pepper variety “Hongluodan” as test material and traditional internal additive EVA film as control, the light and heat preservation properties of coating film and test type added EVA film and their effects on the growth of pepper, environment and The impact of production. The results showed that the translucency and thermal insulation properties of the EVA films were higher than those of the conventional EVA films. The monthly average temperature, the ground temperature and the temperature of the EVA films were the best ; The light transmittance of the coated film was the best, and the diurnal variation of air temperature was dramatic. The addition of EVA film and the experimental film added 23.3% and 10.2% of the control film, respectively.