玉米是我省的主要粮食作物之一,播种面积3000多万亩,仅次于小麦居第二位。因此,把玉米生产搞上去,是加快粮食增长速度行之有效的途径。实践证明,发展玉米生产,选育和推广优良杂交种,是一项经济有效的措施。玉米是一种四碳植物,增产潜力较大。近二十年来世界各国玉米生产增长的速度很 Corn is one of the main grain crops in our province, sown area of ​​more than 3000 mu, second only to wheat ranks second. Therefore, engaging in corn production is an effective way to speed up the rate of grain growth. Practice has proved that the development of corn production, breeding and promotion of fine hybrids is a cost-effective measure. Corn is a four-carbon plant, yield potential greater. Nearly two decades the world maize production growth rate is very high