稻田多熟种植的经济、生态效益及生产弹性分析  

Study on economic and ecologic returns of various cropping systems of paddy field

作　　者：杨俊辉[1] 曾祖俊[1] 庞良玉[1] 

机构地区：[1]四川省农科院土壤肥料研究所

出　　处：《西南农业学报》1999年第1期61-65,共5页Southwest China Journal of Agricultural Sciences

摘　　要：应用Ｃｏｂｂ－Ｄｏｕｇｌａｓ生产函数模型对成都平原现有的主要几种稻田多熟种植的经济效益、生态效益及其生产弹性作了研究，结果表明：（１）稻田新三熟种植的经济效益、劳动生产率、生态效益指标均高于稻田两熟种植；（２）适当调整现有稻田多熟种植的劳力及氮肥要素的分配比例，农业生产的整体生产力就会提高。Economic return, ecologic return and elastic coefficients of various cropping systems of paddy field were studied by using Cobb-Douglas model. The conclusions are:(1)economic return, labour productivity and ecologic return of neo three cropping patterns is higher compairing with the double cropping system of paddy field;(2)The cropping capacity will rise surely by adjusting the distribution ratio of neo three cropping patterns in labour and N.

关 键 词：稻田 多熟种植 经济生态效益 弹性分析 

分 类 号：S511.04[农业科学—作物学]