应用防虫网覆盖栽培蔬菜是一项增产实用的环保型新技术 ,开辟了蔬菜防虫抗灾的物理防治新途径。本试验为不同目数防虫网覆盖栽培小白菜的试验 ,探索不同密度防虫网覆盖后的小气候环境、防虫效果和对蔬菜产量、品质的影响。供试 4个标准钢架大棚 ,其中 3个分别全程覆盖 30目、 2 Application of insect net cover cultivation of vegetables is an increase of practical and environmentally friendly new technology, opened up a new way of vegetable pest control and physical disaster prevention. In this experiment, we test the cultivation of Chinese cabbage with different mesh insect net, and explore the microclimate environment, pest control effect and the effect on yield and quality of vegetables after covered with different density insect net. For the test four standard steel shed, of which three were covered throughout the 30 head, 2