镇江丘陵农业区,土地面积6212.0l平方公里,自然资源丰富,是全省商品粮基地之一。近年来,引进了棉花,扩大了油菜和三麦面积,绿肥面积缩小到10％以下,出现养用不协调,局部地区抗旱能力仍然不高,旱、湿、洪、涝尚未完全解决。因此,亟需研究符合丘陵地区自然规律和经济规律,充分利用本地资源的耕作改制。 Zhenjiang hilly agricultural areas, the land area of ​​6212.0l square kilometers, rich in natural resources, is one of the province’s commodity grain base. In recent years, the introduction of cotton, expanded the area of ​​rape and three wheat, green manure area reduced to below 10%, there is uncoordinated use of nutrients, drought resistance in some areas is still not high, drought, wet, floods, waterlogging yet to be fully resolved. Therefore, it is imperative to study farming systems that conform to the natural laws and economic laws in the hilly areas and make full use of local resources.