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1.技术要点(1)精心选用良种。根据当地实际,选择品质优、抗逆性强、生育期适中、种子质量好、产量高的双低杂交油菜品种。三熟制地区适宜应用生育期早、耐迟播(栽)的双低油菜品种。(2)提前准备田块。前作水稻留茬15厘米以下,拉绳开沟做厢,厢面宽120厘米,沟宽25厘米,深25厘米。腰沟和围沟稍微加宽、加深,做到三沟配套。采用开沟机开沟,开沟土均匀覆盖厢面,覆盖不匀的地
1. Technical points (1) carefully selected varieties. According to local conditions, choose good quality, strong resistance, moderate growth period, good seed quality, high yield double low hybrid rapeseed varieties. Three ripening areas suitable for early growth period, late sowing (planted) double low rape varieties. (2) Prepare fields in advance. Former rice stubble below 15 cm, pull rope ditching box, box width 120 cm, width 25 cm, depth 25 cm. Waist ditch and ditch slightly widened and deepened, so three ditch matching. Trencher ditches, trench ditches evenly cover the car, covering uneven