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本文根据河南省的生态条件，论述了夏玉米单产１１０００～１２０００ｋｇ／ｈｍ２的主要栽培技术和当前生产中应该加以改进的措施。
According to the ecological conditions in Henan Province, this paper discusses the main cultivation techniques of summer maize yield 11000 ~ 12000kg / hm2 and the measures that should be improved in current production.