苏北里下河地区位于江苏腹部平原水网地区，在70年代以前种植制度多为一熟水沤田，改制以后耕作制度基本为稻麦一年两熟，是我省大麦生产区之一。根据历年亩产量资料统计：50年代到60年代增产幅度33．3％～50％，60年代到70年代增产幅度100％～83．3％。70年代到80年代增产幅度 The Lixia River area in northern Jiangsu lies in the water network area of ​​plain belly of Jiangsu Province. Before the 1970s, most of the planting systems were one paddy fields. After the system was reformed, the farming system was basically two crops of rice and wheat in one year. It is one of the barley producing areas in our province. According to historical data of per-mu yield: 33.5% to 50% increase in the 1950s to the 1960s and 100% to 83.3% increase in the 1960s to the 1970s. 70s to 80s increase yield