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在吉林省湿润冷凉区,以中早熟玉米品种吉单27、中熟玉米品种先玉335和中晚熟玉米品种吉单618为试验材料,比较相同栽培条件下,进行6个不同收获时期对玉米产量及产值的研究。结果表明,吉单27、先玉335、吉单618的最佳收获期分别为10月5日～10月15日、9月30日～10月15日、10月5日～10月15日,达到最佳产量和产值。
In the humid and cool area of Jilin Province, middle-early-maturing corn variety Jimdan 27, middle-maturing corn variety Xiangyu 335 and middle-late maturing corn variety Jimidan 618 were used as experimental materials. Under the same cultivation conditions, 6 maize Research on output and output value. The results showed that the best harvest period of Jidan 27, Xiangyu 335 and Jidan 618 were October 5 to October 15, September 30 to October 15, October 5 to October 15 , To achieve the best output and output value.