防虫网在西瓜生产上的应用研究

Study on net application in watermelon production

防虫网对西瓜主要害虫黄守瓜、菜青虫的控制效果为100%,蚜虫的控制效果为80%。并明显改善小气候环境。网棚内西瓜叶片叶绿素含量比网外高5.46%-7.15%;单株叶面积比网外高11.9%-18%;可溶性固形物含量比网外高4.5%-5.9%;防虫网内1hm2产量比网外高4710kg。

The prevention effect of fly nets above watermelon against yellow melon leaf beetles, cabbage caterpillars and aphids were 100%,100% and 80% respectively. The incidence of virosis was below 1%. Through microclimate observation in a fly net from May to July, the fly net obviously improved the microclimate and improved production per unit and quality. The watermelon's leaf cholrophyll content, individual plant leaf area, fruit soluble starches were improved by 5.4%-7.15%,11.9%-18% and 4.5%-5.9%, respectively. Production per 1hm 2 in fly nets was 4710kg higher than that of the control.