水田整地工艺方案的比较,应当从农机具—土壤—农艺系统进行多学科综合研究,才能科学地反映耕作机理,求得比较符合生物学特性的客观结论。本文针对南方水田地区两种典型整地工艺方案,从农机作业动力经济性,耕层土壤理化性质变化及对水稻移栽后一系列生物学特性进行了系统综合的研究。认为通常所谓旋耕作业工艺会对水稻土造成粘闭板结的说法是没有根据的。问题在于合理地控制机械作业的条件。 Comparison of paddy field preparation programs, multi-disciplinary research should be carried out from agricultural machinery - soil - agronomic system in order to scientifically reflect the farming mechanism, to obtain objective conclusions more in line with the biological characteristics. In this paper, two typical land preparation schemes were studied in paddy fields in southern China. The dynamic and economic aspects of farm machinery, soil physical and chemical properties of topsoil and a series of biological characteristics after transplanting were systematically studied. The belief that the so-called rotary tillage process can result in a closed compaction of the paddy soil is unfounded. The problem is a reasonable control of the conditions of mechanical work.