正确估价耕作土壤資源,深入了解土壤肥力及其与作物生长之間的依賴关系,不但对合理利用与改良土壤,不断提高单位面积产量有着重要的現实意义,而且也是农业土壤地理学为当前大办农业、大办粮食服务的重要研究課題。大跃进以来,特別是羣众性的土壤普查鑑定运动开展以后,我們对江苏省土壤資源的評价、土壤肥力的演变規律和促进大面积均衡增产的途径这三个方面,在深入农村、深入实践的基础上,开展了一些工作,取得了一些資料。現将两年来的資料整理出来,希望其能够部分地滿足生产上的要求,并討論农业土壤地理工作在土壤普查鑑定以后所应从事研究的途径。一土壤資源的估价正确地評价和統計土壤資源,是土壤普查以后需要首先完成的任务。因为只有对土 Correctly assessing the cultivated soil resources and understanding the relationship between soil fertility and crop growth depend on not only the rational use and improvement of soil and the continuous improvement of yield per unit area, but also the fact that agricultural soil geography is the largest Doing agriculture, major food services, an important research topic. Since the Great Leap Forward, especially after the Mass Census and Land Appraisal Movement was carried out, we evaluated the soil resources of Jiangsu Province, the law of soil fertility evolution and the ways of promoting the large-scale balanced production increase. After going deep into the countryside, On the basis of some work carried out and made some information. The data of the past two years are now being sorted out in the hope that they will be able to partially meet the requirements of production and to discuss the ways in which agricultural soil geography work should be conducted after the identification of the soil. A valuation of soil resources The correct assessment and statistics of soil resources is the first task to be completed after the soil census. Because only on the soil