建国以来,我国土壤肥料工作召开了三次全国性工作会议,确定了土壤肥料工作的方针、任务。取得了很大成就。土壤普查、培肥改土、有机肥与化肥,合理施肥等方面的科研、推广工作都有很大的进展。土壤普查技术、南方低产红壤、黄淮海平原旱涝盐碱地等低产土壤的综合治理,细绿萍的养殖利用、冬绿肥高产栽培技术、秸秆还田、科学施肥技术、诊断配方施肥、氮素调控、碳酸氢铵全层基施、根外追肥、微量元素肥料研究推广等成果在生产中大面积推广,取得显著的 Since the founding of the People’s Republic of China, three national work meetings have been held on soil and fertilizers in China, setting the guidelines and tasks for soil and fertilizer work. Has made great achievements. Soil census, fertilization and soil improvement, organic fertilizer and fertilizer, fertilization and other aspects of scientific research, promotion work has made great progress. Soil census technology, low-yielding red soil in the south, droughty and salinity-alkaline soil in the Huang-Huai-Hai Plain, comprehensive management of low-yield soils, cultivation and utilization of fine green Pingdingshan, high wintergreen fertilizer cultivation techniques, straw application, Ammonium bicarbonate full-based facilities, root top dressing, trace element fertilizer research and promotion of achievements in the production of large-scale promotion, and achieved significant