江汉平原中低产土壤及其改良利用

AMELIORATION AND UTILIZATION OF THE MID AND LOW YIELD SOILS IN JIANGHAN PLAIN

在分析江汉平原中低产土壤形成原因的基础上，将其分为涝渍、漏瘠和粘结三种类型。提出了五条改良利用措施：１、渔农复合，增强调蓄能力；２、抗旱治渍，协调水气；３、增肥调养，培肥地力；４、选择适当作物品种和优良耕作栽培模式；５、综合治理，系列配套。

The mid and low yield soils in Jianghan Plain are classified three types in the paper based on their origins. Five measures of ameliorating and utilizing the mid and low yield soils are proposed by the authors. The measures are (1)fish-agriculture compounding in order to strengthen the capacity of regulating and storing floodwater,(2) irrigating at soil drought and draining at soil flood , regulating the relationship between water and air, (3)fertilizing the soil and regulating the soil nutrients, increasing of soil fertility ,(4) selecting the varieties of crops adaped to local soil condition and rational models of tillage and culture;(5) applying the comprehensive farming techniques