Total aggregate measurement of support or Total AMS—— a measurement calculating how much support is provided to the agricultural sector per year in the base years of 1986-1988. Developed countries have agreed to reduce these figures by 20% over six years starting in 1995. Developing countries are making 13% cuts over 10 years. Least developed countries do not need to make any cuts.

　　微量支持（de minimis support）——

　　WTO成员对于农业的一种支持，属黄箱（yellow box）政策，不用被削减。因为它对农业的影响很小。据世贸的《农业协定》（Agreement on Agriculture）对于发达国家而言，微量支持水平（de minimis level）为不超过一种产品生产总值的5%，对于非特定产品支持，为农业生产总值的5%；对于发展中国家，微量支持水平的最大值是10%。