蔬菜生产中两种实用新技术１．选用有色膜。有色膜是我国独有的新膜种，现有黑、银灰、乳白、绿、紫、蓝、红等多种颜色。在蔬菜生产应用中，冬春季覆盖选用颜色较深的有色膜；以除草为目的的以黑色、绿色膜为好；驱蚜防病、增加下部光照则以银灰色膜为佳；早春和炎夏用黑... Two Practical and New Technologies in Vegetable Production 1. Use colored film. Colored film is a unique new film species in our country, the existing black, silver, white, green, purple, blue, red and other colors. In vegetable production applications, winter and spring cover the selection of darker color film; to weed for the purpose of black, green film is good; aphids disease prevention drive to increase the lower part of the light to silver gray film is better; early spring and summer black...