麦田套种玉米,可以提高土地利用率,多打粮食。但套种玉米生态环境条件不利,倘措施不当,不能培育壮苗,就会影响产量。不利的条件:一是套种玉米的畦埂历经秋、冬、春三个干旱季节,土硬、欠墒、通气差,影响苗期根系的生长;二是畦埂中的养分多被小麦吸收,玉米苗小、根少,争夺剩余养分处于劣势,三是小麦遮阴,玉米光照不足,温度低,日较差小。 Wheat interplanting corn, can improve land utilization, eat more food. However, intercropping maize ecological and environmental conditions unfavorable, if improper measures, can not cultivate strong seedlings, it will affect the yield. Unfavorable conditions: First, intercropped corn 畦 埂 After autumn, winter and spring three dry seasons, hard soil, moisture, poor ventilation, affecting the growth of seedling root system; Second, the nutrients are mostly absorbed by wheat, Corn seedling small, less root, competing for the remaining nutrients at a disadvantage, the third is the shading of wheat, corn inadequate lighting, low temperature, the Japanese poor.