两年的试验表明 ,拱棚覆盖比现行植棉技术增产16.5 %～34.1 %。拱棚覆盖能显著提高地温和拱棚内气温 ,可使播期提前15天左右 ,保全苗、促早发效果特别显著。此外还能避开霜冻为害 ,较好地解决麦棉两熟“两晚”问题 ,使麦棉两熟进入良性循环 Two years of tests showed that the shed coverage increased 16.5% ~ 34.1% over the current cotton planting technology. Shed coverage can significantly increase the temperature in the arch and the temperature, sowing date can be 15 days in advance, the preservation of seedlings, promoting early onset of the effect is particularly significant. In addition to avoid the frost damage, better solve the “two nights” problem of wheat and cotton two crops, so that wheat and wheat two crops into a virtuous circle