为尽早解决大小苗两用机动插秧机,加速我国水稻插秧机械化的进程,由一机部委托湖南省组织的有关省市参加的三结合的歼灭战组,在原湘—71型的基础上,改进提高,研制成东风—74型大小苗两用机动水稻插秧机。该机具有结构简单,用材省、成本较低,使用较可靠,改插大、小苗更换零部件少等特点,受到贫下中农的欢迎。于一九七四年七月通过鉴定和初步定型。 As soon as possible to solve the size of Miao dual-use mobile transplanter to speed up the process of rice transplanting mechanization in our country by the commissioned by the Ministry of Hunan Province, the provinces and cities involved in the combination of the three combined annihilations group, based on the original Xiang-71 type, improve and improve , Developed into a Dongfeng -74 size Miao dual-use mobile rice transplanter. The machine has a simple structure, timber province, lower cost, the use of more reliable, change the plug large, small seedling replacement parts and other characteristics, by poor middle peasants welcome. In July 1974 through the identification and preliminary stereotypes.