日光温室种植油麦菜覆盖技术研究

Covering Technology Appling on Planting Lettuce in Sunlight Greenhouse

试验用EPE高发泡片材复合镀铝膜与单层草帘卷在一起盖于室外 ,温室内于棚膜下固定一层衬膜做处理 ,以双层草帘室外覆盖为对照 ,进行温室种植油麦菜试验。结果表明 :①处理 9d日平均温室温度、最高室温、最低室温分别比对照高 1.8,1.7,2 .3℃。②油麦菜单株鲜重处理比对照增加 1.1倍 ,单株干重处理比对照增加 85 .2 % ,同时 ,叶长、叶宽也比对照有大幅度提高。③与对照比较 ,处理每公顷产量增加 10 4 4 1.5kg(提高 6 1.6 7% ) ,纯收入增加 116 17.5～ 17883.0元。

Lettuce was planted in sunlight greenhouse from November 1999 to January 25th,2000. In the treatment Sunlight greenhouse was covered with rice straw quilt and aluminum planted foamed plastic quilt,under the greenhouse film,to fix another film on frameworks.The CK was covered with double rice straws quilt.The results shown:①The mean air temperature,highest temperature and lowest temperature of treatment increased by 1.8,1.7,2.3℃ over CK respectively during 9 days;②The fresh weight of individual lettuce was 1.1 folds in the same time in contrast with CK and the length and width of leaves was increased by a big margin.③The yield of treatment increased by 10 441.5kg or 61.67% over CK and the net profit increased by 11 617.5～17 883.0 yuan over CK per hm 2.