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油菜高产栽培的关键在于培育壮苗,而培育壮苗的第一大关就是播种。因此必须做好播种准备工作,提高播种质量。一、播种准备 1.晒种将种子晒1～2天,每天3～4小时,以提高种子生活力。 2.选种晒种后进行风选、筛选等,以除去部分夹杂物及秕粒。盐水选种,一般采用1～1.5:10食盐水,将种子放在其中搅拌几分钟,不断除去漂浮的菌核和秕粒,然后捞起下沉的种子,立即用清水冲洗数次,以免盐水影响发芽率。最后将选出的种子摊开晾干,准备播种。种子质量高的可用高浓度盐水,反之则用低浓度。也可以用黄泥水选种。
The key to rape high-yield cultivation lies in cultivating strong seedlings, and the first mark of cultivating strong seedlings is sowing. Therefore, we must do a good job sowing preparations to improve sowing quality. First, sowing preparation 1. Sun seed drying seed 1 to 2 days, 3 to 4 hours a day to improve seed viability. 2.Selected sun drying after the wind election, screening, etc., in order to remove some inclusions and grains. Saltwater selection, the general use of 1 ~ 1.5: 10 salt water, the seeds were stirred for a few minutes, and constantly remove the floating sclerotium and noodles, and then picked up the sinking seeds, rinse immediately with water several times to avoid salt water Affect the germination rate. The selected seeds are finally spread out to dry and ready for sowing. Seeds of high quality available high concentrations of salt water, and vice versa with low concentrations. You can also use yellow mud water selection.