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云南元江县属亚热带边缘气候．秋冬季温暖，是玉米南育的理想基地。异地育种，可加速育种进程，提高育种效率。玉米秋繁应选择土层深厚、排灌方便的旱地或成熟较早的晚稻田。播种以抽雄散粉期避开1月上、中旬的低温及大风为原则，施足底肥、增施磷肥，追肥“少吃多餐”，加强水分管理，及时防虫灭鼠，是元江玉米秋繁获得成功的关键环节。
Yuanjiang County, Yunnan subtropical edge climate. Warm autumn and winter, is an ideal base for South Corn Yu. Breeding at different places can speed up breeding process and improve breeding efficiency. Corn autumn should choose a deep soil, irrigation and drainage of convenient dry land or mature late rice fields. Sowing to disperse loose powder to avoid the January, the middle of the low temperature and windy principle, Shi base fertilizer, the application of phosphate fertilizer, topdressing “Eat less meals”, strengthen water management, timely pest control rodent, is Yuanjiang corn autumn harvest The key to success.