油菜籽撒直播是一项省工、省力、高产、稳产的新型栽培技术,与免耕移栽比较,每667平方米省工4工左右,并且劳动强度大大减轻,省去了育秧、移栽等化工较多的环节,而且管理方便,操作简单,产量也比免耕种植略增。为探索油菜籽撒直播合适的播种期和播种量,我们在1999年底对 Rapeseed dispersal is a new labor-saving, labor-saving, high-yielding, stable production of new cultivation techniques, compared with no-tillage transplanting, about 4 workers per 667 square meters, and labor intensity greatly reduced, eliminating the need for seedlings, transplanting More chemical and other sectors, but also easy to manage, easy to operate, production is also slightly higher than the no-till planting. In order to explore the appropriate sowing dates and seeding rates for rapeseed sowing, we are right at the end of 1999