增加温室光照是夺取蔬菜早熟高产的有效措施。提高光照的潜力很大,措施很多,但目前往往被忽视,现介绍几种简易可行的方法,供选用。1.选择结构形式好的温室、大棚目前结构较好的大棚里面都可不用立住,如钢筋和钢管结构的大棚。在竹木结构的大棚中普遍采用悬梁吊柱的方式省去了大量的前柱,使采光性能得到较大改善,新建或改建时应注意选用。2.清扫棚面每天早晨温室或大棚揭完草苫后,用笤帚或布条等捆在木杆上,自上而下的将塑料薄膜棚面的尘土或杂物清扫干净。这项工作虽较费工,但可提高光照30—50%,效果好,简单可行,不应忽视。3.延长光照时间适当提早揭帘、延晚盖帘的时 Increasing greenhouse light is an effective measure to seize the high yield of vegetables. There is great potential for improving the illumination and many measures are taken, but it is often overlooked at present. Several simple and feasible methods are now available for selection. 1. Select a good form of greenhouses, greenhouses better structure of the shed can not stand inside, such as steel and steel structure of the shed. In the bamboo structure of the greenhouse commonly used cantilever beam column eliminates the need for a large number of the former column, the lighting performance has been greatly improved, new or remodeling should pay attention to selection. 2. Clean the shed Every morning after the greenhouses or sheds are covered with grass, use brooms or cloths to bundle them on wooden poles, and clean the plastic film sheds’ dust or debris from top to bottom. Although this work is more laborious, it can enhance the light by 30-50%. The effect is good, simple and feasible and should not be overlooked. 3 to extend the light time appropriate to expose the curtain earlier, late curtain cover time