如何发挥小型拖拉机的压场作用贾万臣，王丽莉，吕景春，张桂荣，苑广娟（黑龙江省呼兰县农业机械化学校）１机械脱粒的弊端与“小拖”压场的长处随着农业机械化的普及和发展，拖拉机在农业生产中发挥了巨大作用，特别是小型拖拉机压场深受广大农民欢迎。如今全省农村各地... How to play the role of pressure field of small tractors Jia Wanchen, Wang Lili, Lv Jingchun, Zhang Guirong, Yuan Guangjuan (Hulan County, Heilongjiang Province Agricultural Mechanization School) 1 The disadvantages of mechanical threshing and the advantages of “small drag” pressure field With the popularization of agricultural mechanization and Development, tractors in agricultural production has played a huge role, especially small tractor pressure field welcomed by the majority of farmers. Now throughout the province’s rural areas ...