国家经贸委副主任张志刚在最近召开的国产高浓度磷复肥产销会议上讲,根据与有关国家达成的协议,加入WTO后,化肥进口管理将由目前的绝对配额管理改为关税配额管理。关税配额是指在配额内进口实行低关税,配额外进口实行高关税,关税配额管理制度由配额基 Zhang Zhigang, deputy director of the State Economic and Trade Commission, told a recently held domestic high-concentration Phosphorus and Compound Fertilizer production and marketing conference that according to the agreement reached with related countries, after the accession to the WTO, the management of fertilizer imports will be changed from the current absolute quota management to tariff quota management. Tariff quotas refer to the introduction of low tariffs within quotas, the introduction of high tariffs for additional imports, and the quota quota management system.