引黄灌溉济卫工程,是我国第一次引用黄河的水,在黄河下游灌溉农田保证粮棉增产,发展航运促进物资交流的首创工程。目前已有58万亩土地得到灌溉。粮食、棉花及油料作物单位面积产量都有显著的提高,一般农作物每亩均提高100斤左右,特别是东3灌区第3支渠增产更为显著,比旱地每亩 Yellow River irrigation Jiwei project, is China’s first reference to the Yellow River water, irrigation in the lower reaches of the Yellow River to ensure grain and cotton production, development of shipping to promote the exchange of materials, the first project. At present 580000 acres of land have been irrigated. The yield per unit area of ​​grain, cotton and oilseed crops increased significantly. Generally, the average yield of crops increased about 100 kg per acre. In particular, the output increase of the third branch of East 3 irrigation district was more significant than that of dry land per acre