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通过２５季种植的长期定位试验，研究了稻麦轮作条件下不同耕作方式和培肥制度对土壤有机质和全氮质量分数的影响。免耕土壤０～５ ｃｍ土层的有机质和全氮质量分数稍高于耕翻土壤； ５～１５ ｃｍ的则有低于耕翻的趋势； １５～３０ ｃｍ的无明显规律。长期休闲的土壤在整个耕层有明显的有机质和氨素累积，其中碳的累积快于氮的累积，免耕条件下比耕翻条件下累积量更大。 ０～５ ｃｍ和５～１５ ｃｍ土层有机肥与无机肥配施的处理，其有机质和全氮质量分数均显著高于单施化肥处理和不施肥处理，但均低于休闲处理； １５～３０ ｃｍ土层各培肥处理则无明显差异；单施化肥的土壤有机质和全氮质量分数高于不施肥处理，但这种差异只在表层（ ０～５ ｃｍ）较显著。
Through long-term experiment of planting in 25 seasons, the effects of different tillage and fertilization systems on soil organic matter and total nitrogen were studied. The contents of organic matter and total nitrogen in 0-5 cm soil layer of no-tillage soil were slightly higher than that of tillage soil, while those of tillage soil were lower in the range of 5-15 cm than those in tillage soil. There was no obvious regularity in 15-30 cm soil layer. Long-term recreational soils had obvious accumulation of organic matter and ammonia in the whole tillage, of which carbon accumulation was faster than nitrogen accumulation and cumulative under tillage conditions more than under tillage conditions. The treatments of organic manure and inorganic fertilizer applied in 0 ~ 5 cm and 5 ~ 15 cm soil layers had significantly higher contents of organic matter and total nitrogen than those treated with chemical fertilizers and no fertilizers, The soil organic matter and total nitrogen of single fertilizer application were higher than those of non-fertilization treatments, but the differences were only significant in the surface layer (0 ~ 5 cm).