拱棚直播棉即大田直播先覆盖小拱棚 ,3叶期后再抽除支架将拱棚膜原地落下套覆在棉苗上 ,直到初花期揭膜的直播棉。由江苏省邳州市岱山农技站二年四点次试种结果表明 :拱棚棉 0 .37公顷皮棉单产 2 4 64.5 kg,比移载地膜棉增产 1 5 .4% ,多用棉种 7.5 kg,支架 30 0元 ,节省育苗材 Shed broadcast live broadcast that is the field of cotton before the small Shed, 3 leaf stage and then remove the stent will be shed in situ on the cover shed filming on cotton seedlings, until the first flowering of uncovering cotton. The results of four-point trial at Daishan Agricultural Station in Pizhou City, Jiangsu Province, showed that the yield of 037-hectare lint of cotton-shed cotton was 2464.5 kg, increased by 15.4% Bracket 30 0 yuan, save nursery stock material