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1 949年以来 ,随着农业生产结构和条件的变化 ,作物构成的调整 ,一方面高粱种植面积从 1 95 2年 93 9万hm2 下降到 2 0世纪末 1 3 0万hm2 ,即面积减少了 86 %。另一方面 ,高粱单产从 1 95 2年 1 1 85kg/hm2 上升到 2 0世纪末 3 95 0kg/hm2 ,即增加了 2倍多。高粱总产量波动不大。进入新世纪 ,随着农业种植结构调整的不断深入 ,根据高粱的本身生物学特性 ,从高粱用途潜力、全球气候环境变化趋势、国内外市场需求等方面分析了高粱的发展前景。
Since 1949, with the changes in the structure and conditions of agricultural production, crop composition has been adjusted. On the one hand, the area under sorghum cultivation has dropped from 9.39 million hm2 in 1952 to 13.0 million hm2 at the end of 20 0, ie, the area has decreased by 86 %. On the other hand, sorghum output increased from 11 85kg / hm2 in 1952 to 3 950kg / hm2 at the end of the 20th century, ie more than twice as much. Little difference in total output of sorghum. In the new century, with the deepening of agricultural planting structure adjustment, according to the biological characteristics of sorghum, sorghum development prospects are analyzed from the potential of sorghum use, the global climate and environmental changes, domestic and international market demand.