在广大贫下中农和有关农机单位的协助下,我们经两年多的研究、试验,胜利地完成了为铁牛—55拖拉机配套的TXBY—4玉米硬茬播种机(图1)研制任务,现已初步鉴定定型,在关中地区逐步推广使用。该机根据关中地区的耕作特点,在“三夏”季节,天旱、劳力紧张的情况下,可以在茬地保墒耕种,一次完成开沟、施肥、播种、复土、修渠等作业。主要技术参数 With the help of the vast middle peasants and poor peasants and related agricultural machinery units, we successfully completed the task of developing the TXBY-4 corn stubble planter (Figure 1) for the Tractor -55 Tractor after more than two years of research, experimentation Has been initially identified stereotypes, in the Guanzhong region gradually promote the use. According to the characteristics of farming in the Guanzhong area, under the circumstances of drought and labor shortage during the “three summer” season, the aircraft can cultivate and maintain soil moisture at the stubble so as to finish ditching, fertilizing, seeding, rehabilitating and repairing ditches at one time . The main technical parameters