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1品种选择与种子处理选用抗(耐)病性品种。二熟制应选择生育期较长的高产、稳产、纯度好的杂交油菜品种;三熟制应选择生育期较短(其生育期的长短以不影响二茬、三茬作物的生长为宜)的杂交油菜品种或普通的白菜型油菜品种。播前将种子进行盐水消毒和除杂。盐水选种可以淘汰菌核和杂物、秕粒,从而提高可用种子质量,其方法是用10%的盐水浸种并搅拌5min,除去漂于水面的异物,然后捞出用清水冲洗数次,晾干即可播种。
1 Selection of varieties and seed treatment selection resistant (resistant) pathogenic varieties. Second crop should choose longer growing period of high yield, stable yield, good purity hybrid rapeseed varieties; three cooked system should choose a shorter growth period (the length of its growth period does not affect the second crop, crop growth is appropriate) Of hybrid rape varieties or common cabbage rape varieties. Seeds before saltwater disinfection and impurity removal. Saltwater seed selection can eliminate sclerotia and sundries grains, thereby improving the available seed quality, the method is soaked with 10% saline and stirred for 5min, remove the foreign body floating on the water, and then remove and rinse with water several times, dry Dry to sow.