目前我省玉米生产现状是,产量水平低,发展不平衡。高产地亩产千斤左右,低产地一、二百斤。亩产500—700斤的中产地块约占玉米总面积的24.6%,亩产300—500斤的低产地块约占65.6%。提高中、低产田玉米的产量,是提高全省玉米总产的关键。中、低肥力地的主要问题是土壤干旱、肥力低,有机质含量一般为0.6—0.8%,对玉米的影响是生育缓慢,叶片分化不充分, At present, the status quo of corn production in our province is that the output level is low and the development is not balanced. High-yielding acres per kilogram or so, low-yield one, two hundred jin. The middle-yield land area of ​​500-700 kg per mu accounts for 24.6% of the total corn area, and the low-yield land area of ​​300-500 kg per mu accounts for 65.6% of the total. Raising the yield of maize in medium and low yield fields is the key to raising the total output of maize in the province. The main problems of medium and low fertility are soil drought, low fertility and generally 0.6-0.8% organic matter content. The impact on maize is slow growth, inadequate leaf differentiation,