明代西北地区粮食生产研究吕卓民在发展农业生产方面，垦辟土地以扩大粮食作物的种植，兴修水利以增加灌溉土地的面积，改进生产工具以提高农作技术等，目的均在于增加粮食的产量。明代西北地区的粮食生产状况如何？不同区域的生产差异又如何？本文试从文献记载各地区的税... Research on Food Production in Northwest China in the Ming Dynasty Lv Zhuomin In terms of developing agricultural production, reclaiming land to expand the cultivation of food crops, rebuilding water resources to increase the area of ​​irrigated land, and improving production tools to improve farming techniques are all aimed at increasing grain output. How is the grain production in the northwest of Ming Dynasty? What is the difference in production in different regions? This article tries to record tax from all regions ...