在一定条件下,油菜冬前生长愈好,春后产量愈高,这是冬油菜的重要高产规律。回顾这一规律的研究与应用过程:通过大量的田间调查研究发现规律,通过小区控制试验和统计分析方法进一步证实,并在指导各地大面积高产实践中加以验证。揭示该规律内部各事物之间的本质联系及内在的生物学基础。 Under certain conditions, the better the growth of rape before winter, the higher the yield after spring, which is an important high yield law of winter rape. Reviewing the research and application process of this law: discovering the law through a large number of field investigation and research, further verifying it through community control experiments and statistical analysis, and verifying the practice of large area and high yield in all areas. Reveal the nature of the relationship between the various things within the law and the inherent biological basis.