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皖薯4号是界首市农业试验站于1980年用阜薯2号与农林11号杂交选育而成。1992年通过省级审定并定名。目前种植面积约10多万亩。产量、品质及抗往及990～1991年参加全国北方区试，夏薯略有减产，但春薯增产显著，鲜薯和薯千亩产1992公斤和622．0公斤，比徐薯18分别增产20．8％和2
Wanshu 4 is Jieshou City Agricultural Experimental Station in 1980 with the Fushu 2 and the Agriculture and Forestry 11 hybrid breeding. In 1992 passed the provincial-level validation and naming. The current planting area of about 10 million mu. Yield, quality and resistant to the 990 ~ 1991 to participate in the northern region of the test, a slight summer sweet potato production, but the significant increase in the yield of sweet potato, fresh potato and sweet potato yield of 1992 kg and 622.0 kg, respectively, than Xushu 18 yield 20.8% and 2