【摘要】 长江下游地区露地越冬采种甜菜的适宜播期为８ 月上旬， 移栽期在９ 月中、下旬， 移栽期秧龄在８ ～１０ 片叶，适宜栽植密度５２５００ 株／ｈｍ２ 。冬前块根直径达４ ～５ｃｍ ，３ 月上旬挖顶芽，孕蕾期打花蕾，始花期根外喷施磷酸二氢钾，生育期要开沟降渍，及时防治病虫害更多还原

【Abstract】 The optimum sowing date of overwinter seed collecting beets in the early of Aug. in the low reaches of Changjiang River, transplanting period is in the mid-late of Semp. the transplanting seedling age is 8～10 leaves with 52500 plants/ha. diameter of the steckling is 4～5 cm for winter storage, cut top buds of beets and spray potassium dihydrogen phosphate before flowering, during the growing period, should give attention to furrowing and controlling pests and diseases.更多还原