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三北21是三北种业有限公司推出的独家研发、生产、经销的早熟抗病、高产稳产的玉米新品种,该品种于2007年3月通过河北省农作物品种审定委员会审定,审定编号:冀审玉2007018号。该品种连
Three North 21 is the three North Seed Industry Co., Ltd. launched an exclusive R & D, production and distribution of precocious disease, high and stable yield of new varieties of corn, the varieties in March 2007 by the Hebei Crop Variety Approval Committee validation, validation number: Hebei Jade jade 2007018 number. The variety even