辽宁省水稻面积五百七十万亩,一九七九年全省稻谷平均亩产七百四十五斤。随着水田机械化的不断发展,稻田的机械化耕整方法也在不断改变之中。研究结果证明,在稻田的耕整技术上,采取以旋耕为主、配合驱动耙乃是今后机械整地作业的发展方向。(一)纵析辽宁省稻区整地的技术发展主要历经了三个阶段。五十年代,在机械化耕作水平较高的 Liaoning Province has an area of ​​5.7 million mu of paddy, and in 1979, the average paddy yield per mu in the province was 744 kg. With the continuous development of paddy field mechanization, mechanized farming methods of paddy fields are also changing. The research results show that in tillage and paddy technology, the main purpose of rotary tillage is to develop the direction of mechanical land preparation in the future. (A) longitudinal analysis of rice paddy field in Liaoning Province mainly through the three major stages of technological development. In the 1950s, there was a high level of mechanized farming