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在我国南方地区建立以机耕船为主要动力的小型作业机械体系的主要依据有四: (一) 从工作性能来看,机耕船比拖拉机更为适合我国南方水田土壤特点和要求。拖拉机在一般水田耕作一个时期,往往会破坏土壤硬底层,使泥脚逐年加深,以致无法再进行作业。据洛阳拖拉机研究所对24个社队调查,结果表明:被用拖拉机耕作,使泥脚逐年加深的有20个,占83.3％。为了解决拖拉机下水田破坏土壤硬底层的问题,早在第二次世界大战期间,美国学者M·C·贝克曾提出“浮
In South China, the main basis for establishing a small working machinery system with machine-driven farming as the main driving force is as follows: (1) From the perspective of work performance, it is more suitable for tractor than tractor for the characteristics and requirements of paddy soil in South China. Tractors in a paddy field for a period of farming, tend to destroy the hard bottom of the soil, so that mud feet year by year deepening, so that no further work. According to a survey of 24 communes and teams by the Luoyang Tractor Institute, the results showed that 20 were tilled by tractors and 83.3% were deepened year by year. In order to solve the problem that the paddy fields of tractors destroy the hard bottom of soil, as early as in World War II, American scholar MC Baker proposed "floating