经过２０多年的改革和发展，我国农业的综合生产能力连续迈上几个台阶，农副产品供给实现了由长期短缺到总量平衡、丰年有余的转变。但是随着农产品供求关系的变化，越来越多地方的农民出现了卖粮难、卖菜难、卖农副产品难的现象，农民增产不增收，生产积极性受到严重打击。这 After more than 20 years of reform and development, the comprehensive productivity of agriculture in our country has continuously taken a few steps. The supply of agricultural and sideline products has achieved a shift from a long-term shortage to a total amount of surplus and a harvest of more than one year. However, with the changes in the supply and demand of agricultural products, more and more local peasants have faced the problem of selling food, selling vegetables hard and selling agricultural and sideline products. Peasants increased their output but did not increase their incomes and their enthusiasm for production was severely hit. This