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玉米是陕西省的主要粮食作物,常年种植面积在120万hm2。划分为两个区,一是全省春玉米生产区,包括陕南三地市、渭北和陕北三地市。关中夏玉米生产区,包括咸阳、西安、渭南及宝鸡。关中灌区土地平整,土壤肥沃,雨热同季,排灌条件良好,拥有种植玉米得天独厚的资源优势,是陕西省玉米的高产区和主产区,常年种植夏玉米,占全省玉米种植面积的60%以上,总产占全省玉米产量的近70%1生产现状1.1缺乏高产稳产综合抗逆性强耐密植品种近几年,关中夏玉米区粗缩病、茎腐病、大小斑病等
Corn is the main food crop in Shaanxi Province with perennial acreage of 1.2 million hm2. Divided into two districts, one is the province’s spring corn production areas, including three cities in southern Shaanxi, Weibei and three cities in northern Shaanxi. Guanzhong summer corn production areas, including Xianyang, Xi’an, Weinan and Baoji. Guanzhong irrigation area of land formation, fertile soil, rain and heat in the same season, irrigation and drainage conditions are good, with the unique advantages of planting corn resources, is the high yield and main producing areas of maize in Shaanxi Province, perennial planting of summer maize, accounting for 60% of the province’s corn acreage % Or more, total output accounts for nearly 70% of the province’s corn production 1 Production status 1.1 The lack of high-yielding and stable comprehensive high-density and close tolerance varieties In recent years, Guanzhong maize area of rough, stalk rot, size spot disease