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2bf-48a xing bo zhong shi fei ji fang shen bo gai zhuang
Author(s): 
Pages: 22
Year: Issue:  10
Journal: Farm Machinery

Keyword:  升降调节器施肥机适播期F-48A升降拉杆开沟器播种深度播深茬地地轮;
Abstract: <正>2BF—48A型播种机,由于该机重量加上种子、化肥和随机人员后,总重超过1.8吨。两地轮着地面积只有600厘米~2左右,在小麦适播期,化冻层不超过15厘米时,用升降调节器调节可以达到所需播深。但由于各种原因,播期往往拖后,地轮下陷严重,特别是在秋翻地,播种深度太深,影响作物生长。如果用取下升降拉杆弹簧的方法,一是费时,二是耙茬地秆棵多,容易使开沟器弹起影响覆土,并且仍有播种过深现象。在播大豆、玉米、
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