经国家计委、建委批准,1978年从美国引进了150马力级的拖拉机及其配套农具、联合收割机和400米长大型喷灌机,并以友谊农场五分场二队为实验地.当年就创造了每个农业工人生产粮豆21万斤的高劳动生产率,从而引起各方面的重视。党和国家领导人邓小平,李先念、赵紫阳,王震、王任重曾亲临 Approved by the State Development Planning Commission and the Construction Commission, a 150-horsepower tractor and its supporting tools, a combine harvester and a 400-meter-long large-scale irrigation machine were introduced from the United States in 1978 and experimented with the Second Team of Friendship Farm Five Points. Created a high labor productivity of 21 000 jin per bean produced by each agricultural worker, thus arousing the attention of all quarters. Deng Xiaoping, Li Xiannian, Zhao Ziyang, Wang Zhen and Wang Renzhong, leaders of the Party and the state, have made their own visits