我团液氨施肥的使用和施液氨机械的研制工作,是我师今年三月在农一团召开春耕播种现场会后(参观了液氨施肥现场)开始提出的新课题。从感性认识逐步深入;于五月份团成立了研制改革液氨施肥机械小组。在上级部门的支持,团党委重视,参加研制同志们的共同努力下,以自力更生为基点,攻克了许多难关,奋战一星期,改成了第一 The utilization of ammonia liquid fertilizer and the research and development of liquid ammonia machinery were the new topics that my teacher started to propose after the spring plowing sowing scene in March of this year (visited the scene of liquid ammonia fertilization) in March this year. From perceptual understanding and gradually deepened; in May the group set up a research and reform of liquid ammonia fertilizer machinery group. With the support of the superior departments, the League Committee attaches great importance to participating in the joint efforts of the comrades in development, taking self-reliance as the starting point, capturing many difficulties, fighting for a week and changing to the first