【摘要】 对一季稻田油菜免耕直播的播种期、播种量、播种方式、种子处理进行了研究。结果表明:水稻收割后,免耕直播油菜播期尽可能提早,播量以3000～3750g/hm2为宜。随着播期的推迟,包衣种子免耕撒播后进行稻草覆盖的播种方式最佳。示范结果表明,不同栽培方式中,免耕直播油菜的产值和纯收入均超过翻耕直播和板田移栽的平均水平,且技术简便、省本、高产、高效,可减轻劳力紧张的矛盾,实用性强,发展前景广阔。更多还原

【Abstract】 The experiment of seeding times, seeding rates, seeding methods were conducted under no-tillage and direct seeding cultivation.The results showed that the seeding date should be ahead of time possibly just after rice harvesting, the seeding rate was 3 000～3 750 g/hm~2 with the seeding time postponed. The yield and net revenue of oilseed rape under no-tillage direct seeding was higher than that of both the tillage direct seeding and the no-tillage transplanting. By taking this technology, the oilseed rape production has been made the technique simple, the cost low, both yield and benefit high, and the pressure of labor reduced.更多还原