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近两年,铁岭地区推广了玉米适当晚收经验,取得了很好经济效果。各地可根据本地的实际情况推广这一技术。据开原县靠山公社1982年试验:以10月1日收获的玉米产量为100,则9月25日收获减产7.7％,9月28日收获减产1.2％,10月4日收获增产4.4％。试验证明,玉米完熟期虽着霜冻,但籽粒仍在不断增重,并以子叶退绿7～10天时百粒重最高。同时籽粒含水量相应降低(平均下降3.4％)
In the past two years, Tieling has popularized corn’s appropriate late harvest experience and achieved good economic results. The technology can be popularized around the world based on the actual situation in the region. According to the 1982 trial of Kaoyuan County Commune by Commune Commune, the harvest of corn on October 1 was 100, with a yield reduction of 7.7% on September 25, a yield reduction of 1.2% on September 28 and a 4.4% increase on October 4. Experiments show that although the maturity of corn frost, but the grain is still gaining weight, and the cotyledons back to green 7 to 10 days when the highest 100-grain weight. At the same time, the grain water content decreased accordingly (with an average decrease of 3.4%)