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由河南省育成的红薯新品种S_(52)—7是以“红旗4号×19—5”有性杂交选育而成,是我国目前特早熟特高产特抗病的红薯新品种。 一、特性特征 1.特早熟。可双季栽培,栽后20天薯块开始膨大,80天产量可达2000～4000公斤。春薯4月上旬播种,7月中旬收获;夏薯6月上
The new sweet potato cultivar S_ (52) -7, bred by Henan Province, was bred by sexual hybridization of “Hongqi No.4 × 19-5” and is a new sweetpotato variety with special special high yield and special disease in our country. First, the characteristics of a special precocious. Can be double-season cultivation, 20 days after transplanting tuber began to expand, 80 days production up to 2000 ~ 4000 kg. Spring potato sowing in early April, mid-July harvest; summer sweet potato in June