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三、我区土壤肥力研究概况解放以来,有关单位调查研究宁夏引黄灌区土壤,编写了《银川平原土壤》、《宁夏土壤及其改良利用》、《宁夏农业地理》、《土壤普查技术》等书以及有关各县的土壤普查资料,比较系统地阐明了土壤的形成、性态、理、化、水分性质以及改良利用的途径.在高产土壤环境及培肥措施、作物高产施肥技术及施肥理论基础、改土治水、改良盐碱地和耕作改
Third, the study of soil and fertility in our region Since the liberation, the relevant units to investigate irrigation Ningxia Yellow River irrigation area, prepared the “Yinchuan plain soil”, “Ningxia soil and improve utilization”, “Ningxia agricultural geography”, “soil census technology” and so on Books, as well as the soil census data of various counties, systematically expounded the formation, character, physiology, chemical and water properties of soil and the ways of improving and utilizing them.Under the conditions of high yielding soil environment and fertility control, high yield fertilization and fertilization theory Basis, soil and water improvement, improvement of saline-alkali land and farming reform