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1.精细整地。雄性不育系陕2A 种子发芽势弱,顶土力差,播前耕作必须做到深、细、碎、平,上虚下实,为一播全苗打好基础。同时结合浅耕每亩用3～4公斤甲敌粉掺入适量的细干土,均匀撒入土壤中,防治地下害虫。2.规格播种。拉线划行,行距45厘米,人工沟播,采用人工点种或用自制溜种器溜种,覆土3～4厘米,墒不足时沿播行镇压。父母本
Precise preparation Shanyao 2A male sterile line germination potential is weak, the top soil is poor, sowing before planting must be deep, fine, broken, flat, on the virtual reality, to lay the foundation for a full seedling. At the same time with shallow plowing per acre with 3 ~ 4 kg A rival powder into the amount of fine dry soil, evenly scattered into the soil, control of underground pests. 2. Sowing specifications. Pull the line, line spacing 45 cm, artificial groove broadcast, using artificial point species or slip with homemade slides, soil cover 3 to 4 cm, sowing cracks along the road when running low. Parents