Abstract: This paper lists the advantageous prerequisites on establishing production system of tri-elements structure on the basis of analysing the limitation of traditional dual structure in chinese agrarian area.We analyse the only wny from dual structure tri-elements structure to in the future, and put forward the possibility and a tentative idea which the different places in Chinese agrarian are can be developed peally into tri-elements structure.

Key words: Traditional dual structure, Tri-elements structure in the agricultural production system, Forage and crops

摘要： 论文在分析我国农区传统二元结构生产体系限制和影响今后大农业发展的基础上,提出建立三元结构生产体系的有利条件,分析今后由二元结构向三元结构生产体系过渡的必由之路,同时提出我国农区各类地区逐步形成三元结构生产体系的可能和初步设想。

关键词: 传统二元结构, 三元结构农业生产体系, 种植牧草和饲料作物