“之豇28—2”是浙江省农科院园艺所与杭州四季青公社常青大队协作,用“红咀燕”和“杭州青皮”作亲本杂交,于1980年育成的。近几年来各地试种结果表明,该品种是一个适应性广节成性好、结英率高、收获期长的早熟高产品种。据报道,1981年杭州四季青公社常青大队试种3.15亩,平均亩产7990斤,采收期60天;1982年大连市农科所小区试验折亩产9646 “Cowpea 28-2” is a collaboration between the Horticultural Institute of Zhejiang Academy of Agricultural Sciences and the evergreen brigade of Hangzhou Sijiqing Commune. It was bred in 1980 with “Hongzui Yan” and “Hangzhou Qingpi” as their parents. In recent years, the test results show that the variety is a wide range of adaptive adaptability, the high rate of Ying, long harvest period of high-yielding varieties of early maturity. It is reported that Evergreen Brigade of Hangzhou Sijiqing commune experimented with 3.15 mu in 1981 with an average yield of 7990 kg per mu and a harvesting period of 60 days. In 1982, Dalian Agricultural Science Park experimented with a yield of 9646 mu