土壤普查的目的,是为了解决农业生产中的问题,促进农业的发展。如何使土壤普查成果为当前当地的农业生产服务,为普及大寨县服务,这是土壤普查能否建康发展和不断深入的关键,也是土壤普查是否有用的指标。各地由于自然地理条件不同,农业生产和土壤情况不同,土壤普查的内容,重点也不尽相同,解决什么问题,如何解决问题,即土壤普查应提出什么成果,如何应用土壤普查成果也不相同。四川的试点是,全面了解农业生产中的各种问题,从天地人物的辩证关系出发,把 The purpose of the soil survey is to solve the problems in agricultural production and promote the development of agriculture. How to make the results of soil census serve the current local agricultural production and serve Dazhai County popularization? This is the key to whether the soil census can be developed and deepened and whether the soil census is a useful indicator. Due to different natural and geographical conditions, different agricultural production and soil conditions, the content and focus of the soil census are also different. What are the problems to be solved and how to solve the problems? What is the result of the soil census? How to apply the results of the soil census? The pilot project in Sichuan is to fully understand the various problems in agricultural production. Starting from the dialectical relationship between people in the world and