遮阳网是一种塑料制品,作为蔬菜栽培的覆盖材料,已在国外应用多年,发展较快。我县从1987年开始引进这项材料,进行生产试验和示范推广。实践证明在夏季高温、强光、干旱和暴雨等不良气候环境条件下,栽培蔬菜用遮阳网覆盖,能够遮光降温,防止暴雨直接冲刷,保特土壤表面润湿,避蚜,减少病毒感染,预防雀害,促使蔬菜出苗齐 Shade net is a plastic products, as a vegetable cultivation covering material, has been used abroad for many years, the rapid development. My county since 1987 to introduce this material for production testing and demonstration promotion. Practice has proved that in summer under the conditions of high temperature, light, drought and heavy rain and other adverse weather conditions, the cultivation of vegetables covered with shade net, can shading cool, prevent direct erosion of rainstorm, protect soil surface wetting, avoid aphids, reduce viral infection, prevention Finches, prompting the emergence of vegetables Qi