摘要
对普通塑料大棚内加设中棚、小棚 ,再覆盖无纺布被、地膜以及用电热线加热等不同处理 ,沉淀了棚内冬季的温度动态变化规律。结果表明 ,每增加一层覆盖物 ,都可以提高夜间温度 1～ 2℃ ,且保温效果具有累加效应 ,晴天白天棚内升温加快。在小棚内使用空气加热线的增温效果比单纯覆盖措施效果好。采用大棚内多层覆盖 ,再辅之以电热线加温 。
Tests were conducted on temperature variation pattern in winter in the standard plastic greenhouse under different treatment using inner plastic greenhouse, tunnel, heat preservation cover material, plastic mulch and heating wire. The experiment results showed that by adding each covering, air temperature could increase 1～2 ℃ at night and this effect more obvious during daytime. Using heating wire in the tunnel, the heating effect is better than that of covering. With multi film covering and by using heating wire when needed is an effective way to grow tomato and other thermophile vegetables during whole winter.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2002年第2期76-79,共4页
Transactions of the Chinese Society of Agricultural Engineering
基金
江苏省应用基金项目 (BJ980 10 )
关键词
塑料大棚
多层覆盖
温度
plastic greenhouses
multi film covering
temperature
