施肥是农业生产的重要技术环节。目前垦区粮豆施肥投入占直接成本30％左右,但由于各方面原因,施肥效益增长缓慢,需要转变化肥施用观念,大力推广科学施肥技术措施,发挥其对保护环境,发展质量效益型农业,实现农业增产企业增效职工增收的重要作用。 1 化肥施用中的主要问题 1.1 单一肥料品种多,复合肥料品种少。 50年代中期垦区开始施用化学肥料,主要为氮肥,60年代到70年代开始施用磷肥,80年代开始施用钾肥,多是低浓度单 Fertilization is an important technical aspect of agricultural production. However, due to various reasons, the slow growth of fertilization efficiency needs to change the concept of fertilizer application, vigorously promote scientific and technological measures for fertilization and play its role in protecting the environment, developing quality-benefit agriculture, realizing The Increasing Benefit of Agricultural Producing Enterprises Increasing Workers’ Important Role. A major issue in the application of fertilizers 1.1 Single fertilizer varieties, less variety of compound fertilizers. In the mid-1950s, the chemical fertilizers started to be applied in reclamation areas mainly from nitrogen fertilizers, phosphorus fertilizer from the 1960s to the 1970s, potash fertilizer from the 1980s, mostly low concentration single