综合节水是蔬菜生产的长期战略李泉（海淀区温泉乡）农业节水是节水的重点。蔬菜耗水量居农作物之首，因此，蔬菜生产节水，又是农业节水的重点。１综合节水的产生背景温泉乡最高山峰海拔６８８．１ｍ，最低４５．５ｍ。历代没有大面积种植蔬菜的历史。明代修建的黑龙潭龙... Integrated water saving is a long-term strategy for vegetable production Li Quan (Hot Spring Township, Haidian District) Agricultural water saving is the key point of water conservation. Vegetable water consumption ranks first in the crop, therefore, vegetable water-saving, but also the focus of agricultural water conservation. A comprehensive water-saving background Hot Springs highest peak elevation 688.1m, a minimum of 45.5m. There is no history of large-scale cultivation of vegetables throughout history. Ming Dynasty built Longtan Long ...