【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。更多还原

【Abstract】 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.更多还原