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1 培育母根1.1 整地、起垄选择土层深厚,土质疏松,排灌方便的土壤作育苗地。施用有机肥3 000kg/667m~2,三元复合肥50kg/667m~2,耕翻整平,起垄垄距为30cm。1.2 适时播种,保证全苗播种是制种成功的关键环节,是提高播种质量和保证育苗田苗全、苗齐、苗壮的关键。1.2.1 种子处理甜菜种子种壳坚硬,吸水困难,播前需要用30℃温水浸种4～10h,
1 nurture the parent root 1.1 land preparation, Ridge choice soil deep, loose soil, irrigation and drainage of convenient soil for seedling. Application of organic fertilizer 3 000kg / 667m ~ 2, ternary compound fertilizer 50kg / 667m ~ 2, tilling the whole flat, ridging Ridge Ridge 30cm. 1.2 timely sowing, to ensure that all seedlings sowing is the key to success, is to improve the quality of sowing seedlings and seedlings to ensure Miao, Miao Qi, Miao Zhuang the key. 1.2.1 seed treatment Beet seeds hard shell, water-absorbing difficulties, sowing need 30 ℃ warm soaking 4 ~ 10h,