一、前言1953和1964年我院土壤农化專业教学生产实习,在国营黄泛区农場进行土壤勘察工作,完成了一二四五六共五个作业站約六万市亩耕地的土壤調查工作,作出了各站的土壤調查初步报告和各站万分之一的土壤分布图。回校以后,把实习过程中的某些材料重加整理和分拆后編成本报告。这項土壤調查的要求是“在了解各种土壤类型的农业生产的特性,在农业利用上存在的問题,和提出可能改良該种土壤的理論根据。”为了达到这个要求,我們从三方面进行研究。(1)农場土壤的調查和制图 I. Preface In 1953 and 1964, the teaching practice of soil agro-chemistry in our college was internship. Soil survey was carried out on the farm in the state-owned Huanghe River and the soil of about 60,000 mu of cultivated land in 12455 total stations was completed Investigation work, made a preliminary report of soil survey stations and ten thousandth of each station soil distribution map. After returning to school, some materials in the internship process will be rearranged and split up and compiled into a cost report. The requirements of this soil survey were “to understand the characteristics of agricultural production in various soil types, problems in agricultural use, and to propose theoretical bases for improving the soil.” In order to meet this requirement, we conducted the study. (1) Farm soil survey and mapping