土壤普查是开展科学种田活动的一项十分重要的基础工作。洛阳市郊区已于1978年底全面完成了全市32万亩耕地的土壤普查任务。通过土壤普查,市、社、队三级都分别绘制了土壤类型分布图和土壤有机质、水解氮、速效磷、速效钾含量分级图共1,130幅,并撰写了各级土壤普查报告226份。现就近三年来开展土壤普查试点工作中的一些体会,谈谈土壤普查成果的应用问题。一、是制订各项农业规划的依据大队、公社、县(市)三级土壤图、养分图主要是为制订各级各项农业规划和编绘各项规划图而服务的。 (一)大队:根据土壤图和养分图提供的资料编绘土壤改良利用图,并结合建立地块档案制订合理施 Soil censuses are a very important foundation for carrying out scientific farming activities. The suburbs of Luoyang City completed the task of soil census of 32 million mu of cultivated land in the city by the end of 1978. Soil type maps, 1,130 maps of soil organic matter, hydrolyzed nitrogen, available phosphorus and available potassium were plotted on the soil census, city, community and team levels respectively, and 226 soil census reports were compiled at all levels. Now we have carried out some experiments in soil census in the past three years and talked about the application of the results of soil census. First, to formulate various plans for agriculture According to the soil map of the brigade, commune and county (city) level, the nutrient map mainly serves the formulation of all levels of agricultural planning and compilation of various plans. (A) brigade: According to the soil map and nutrient map information provided by the map of soil improvement and utilization, combined with the establishment of the archives file to establish reasonable facilities