江苏省沿海地区棉花—水稻轮作研究  

Studies on Cotton-rice Rotation in the Coastal Area of Jiangsu Province

作　　者：王景宏[1] 王凯[1] 左文慧[1] 

机构地区：[1]江苏沿海地区农业科学研究所,江苏盐城224001

出　　处：《江苏农业学报》2008年第6期797-799,共3页Jiangsu Journal of Agricultural Sciences

摘　　要：针对江苏沿海地区连作障碍现状,进行了棉花-水稻轮作耕作模式研究。结果表明棉花—水稻轮作可以改善土壤理化性状,大幅度地提高土地产出率,旱改水第一茬水稻比连作水稻增产17.5%,1 hm2农田纯收益增加2 736元;同时减少农药使用,减轻农业面源污染,具有明显的经济和生态效益。The cultivation pattern of paddy-upland rotation（ two kinds of crops employed, rice and cotton）was studied due to continuous cropping drawback in coastal area of Jiangsu Province. Cotton-rice rotation not only improved the soil physical and chemical properties, notably enhanced the land productivity, but reduced the pesticide application so as to alleviate the agricultural pollution. Compared to the continuous cropping pattern, the yield of rice grown in cotton-rice rotation system was increased by 17. 5% ,which increased the net income by 2 736 yuan/hm^2 for the farmers. It could be concluded that the cotton-rice rotation pattern generated great economic and ecological benefits in coastal area of Jiangsu Province.

关 键 词：水稻 棉花 轮作 

分 类 号：S344.17[农业科学—作物栽培与耕作技术]