山东省潍北农场位于渤海垦区以东,是一片沿海冲积成荒洼的盐碱地带,地形平坦,面积10万余亩,作物以棉花、小麦、大豆为主,其次为高梁、玉米、稻、穇子、黍子、地瓜和各种麻类作物,由于沿海的冲积,土壤含有大量的氯化钠(Nacl),地力瘠薄。几年以来,各种农作物的碱害还很严重。但由于我们已逐步的掌握盐碱土地的规律,危害程度也逐渐减轻。兹将我们已初步积累的一些改良盐碱土地的经验摘要介绍如下: Located in the east of Bohai Reclamation Area, Weibei Farm in Shandong Province is a saline and alkali zone with alluvial and alluvial deposits on the coast. The land is flat with an area of ​​more than 100,000 mu. The main crops are cotton, wheat and soybeans, followed by sorghum, corn, rice, Seeds, millet, sweet potatoes and a variety of hemp crops, the soil contains large amounts of sodium chloride (Nacl) due to coastal alluvial soils that are infertile. In recent years, the alkali damage of various crops has been very serious. However, as we have gradually mastered the law of saline-alkali land, the degree of harm has gradually been lessened. Here is a brief summary of some of the experiences we have initially accumulated to improve saline land: