“上农下渔”是黄河人海口盐碱地区实施的特色农业配套工程。为充分利用“上农下渔”池塘,发挥其巨大效益,2005年垦利县海洋与渔业局在西宋乡组织实施了“北方盐碱地区淡水鱼高产高效养殖技术”试验项目,取得成功,每667 m2产淡水鱼0．7 t,产值5 000元,经济效益可观。现将养殖技术介绍如下: “Fishing under the peasants” is the characteristics of agriculture supporting project implemented in the saline-alkali region of the Yellow River Haikou. In order to make full use of the “catch-up” pond and exert its enormous benefits, Kenli County Bureau of Oceanic and Fishery organized and piloted the project of “high-yield and high-efficiency cultivation of freshwater fish in the northern saline-alkali region” in Xisong Township in 2005, Producing fresh water fish of 667 m2 0.7 t, the output value of 5000 yuan, substantial economic benefits. Breeding technology now introduced as follows: