论文部分内容阅读
１目的庆阳地区已建的１３４３座日光温室，累计面积达８３８．７亩，其中安装滴灌的只有地区蚕桑站和经作站各一座，累计面积１亩，其余的都是采用大水漫灌，这样，供水不能直接被蔬菜吸收，导致棚内的湿度增加，造成病虫害发生严重，从而制约和限制着棚菜生产及其高效益...
1 Purpose Qingyang area has been built 1343 greenhouse, the cumulative area of 838.7 acres, of which the installation of drip irrigation only sericulture station and station for each one, a total area of 1 acre, the rest are using flood irrigation, In this way, the water supply can not be directly absorbed by the vegetables, resulting in increased shed humidity, resulting in serious pests and diseases, thus restricting and limiting the greenhouse production and its high efficiency ...