淮河以北的渦阳、蒙城、蕭县、碭山、濉溪、宿县、泗县等县均有部分鹽碱土,这些土壤中由于含有多量的鹽分不利作物生长,所以过去播种旱粮往往是立苗困难,收成很少。近年來由于改种了水稻,通过灌排洗鹽、土壤中含鹽碱的成分逐漸减低,因而获得 Some of the saline-alkali soil in Guoyang, Mengcheng, Xiaoxian, Dangshan, Suixi, Suxian and Sixian counties to the north of the Huaihe River have some salinized soils that contain unfavorable crop growth due to excessive amounts of salt. Therefore, sowing dry-land crops in the past often tended to stand Miao difficulties, harvest little. In recent years due to the re-planting of rice, irrigation by irrigation salt, salt soil alkaline components gradually reduced, and thus obtained