Sustainable agriculture has two important aspects,one is sustanavle agricultural technique system,and the other is sustainable agricultural institution system(SAIS). SAIS is critical.

• 可持续农业有两个支撑体系:一是可持续农业技术体系,二是可持续农业制度体系,两者相辅相承,但近年来我国理论界和实际工作者对可持续农业制度的研究非常薄弱。