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农单５号由河北农业大学农学院玉米育种室１９９３年育成，组合为农系５３１×农系１１０。该品种夏播生育期１０５ｄ（保定），属中早熟品种。１９９６～１９９７年河北省区域试验平均单产７９２３９ｋｇ／ｈｍ２，比对照冀单２９增产１３３％。试验证明，农单５号表现高产、稳产，农艺性状优良，抗病、抗倒、抗旱性好。适宜黄淮海地区夏直播或套播及东华北地区春晚播。种植密度以５７０００株／ｈｍ２为宜。制种时父母本同期播种或母本浸种后与父本同期播种，行比以１∶４～５为宜。
Agricultural single No. 5 by the Agricultural University of Hebei Agricultural Breeding Room bred in 1993, the combination of the Department of Agriculture 531 × 110. The varieties of summer sowing period 105d (Baoding), is a middle-aged varieties. From 1996 to 1997, the average regional yield of Hebei Province was 7923.9 kg / hm2, which was 13.3% more than that of the control Jidan 29. Experiments show that the performance of single high-yielding on the 5th, stable yield, good agronomic traits, disease resistance, lodging resistance, drought resistance. Yellow Sea, Huaihai Sea suitable for summer broadcast or set broadcast and the East China North Spring Festival Evening broadcast. Planting density of 57000 plants / hm2 is appropriate. Seed production during the same period of sowing mother or mother soaking the same period with the male parent sowing, line than 1: 4 to 5 is appropriate.