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入秋后,正是作物籽粒灌浆和增重时期。除需要有较好的肥水基础之外,还需要有充足的阳光和温度,才能增强光合作用的效能,以利形成和积累营养物质。玉米、高粱四放秋垄、打底叶,能改善温、光条件,是行之有效的促熟增产措施。新宾县上夹河公社胜利八队测定,玉米田放秋垄、打底叶后,使玉米提早成熟5天左右,增产11～13％。气候冷湿,有效积温偏低的地区或早霜来得早的年份,采取这种措施,促熟增产效果更明显。促熟增产的作用在于:
After autumn, it is crop grain filling and weight gain period. In addition to the need for a better fertilizer and water base, there is also a need for adequate sunshine and temperature in order to enhance the efficacy of photosynthesis to facilitate the formation and accumulation of nutrients. Maize, sorghum four put autumn ridge, bottom leaf, can improve the temperature and light conditions, is an effective measure to increase production. Xinbin County on the folder River Commune victory eight team determination, corn fields put autumn ridge, playing the bottom leaves, so that corn mature about 5 days, an increase of 11 to 13%. Cold and humid climate, low effective area or early frost earlier in the year to take this measure, promote production and more effective stimulation. The role of maturity and yield increase is: