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在我国粮食作物中,玉米是仅次于水稻、小麦的第三位作物。自从解放以来,玉米、高粱、谷子三大旱粮作物虽然在各个省、市地区以及不同的时期背景下互有增减,各有不同的优势和劣势。但是,总的看来,玉米发展较快,特别在干旱少雨的地区,只要肥水调配得当,就可显示出它的增产潜力和肥水经济效益大的特点来。北京市郊区近年玉米大幅度增产,就是一个有力的例证。北京市郊区玉米单位面积产量,解放初期为一百
In China’s grain crops, corn is the third crop after rice and wheat. Since the liberation, although the three main dry grain crops of corn, sorghum and millet have their own advantages and disadvantages in different provinces and municipalities and in different times and backgrounds, they have different advantages and disadvantages. However, in general, the rapid development of maize, especially in arid and dry areas, as long as the fertilizers properly allocated, can show its potential for yield and fertilizer economic benefits of large features. Suburbs in Beijing in recent years, a substantial increase in corn, is a powerful example. Output per unit area of corn in the suburbs of Beijing was 100 in the early days of liberation