[ Objective ] To analyze the conditions of organic matter and the relationship between it and soil nutrient in Nanping tobacco-planting areas. [ Method] The status and evolution tendency of soil organic matter and its relationship with soil nutrient were analyzed using the survey data of Nanping tobacco-growing soil. [ Result ] The average content of soil organic matter was ( 25.97 + 7.74 ) g/kg with CV of 29.80％,of which the range of 15. 00 - 25.00 and 25.00 - 35. 00 g/kg accounted for 46.03％ and 37.56％ , individually. Compared with that in 1994, the organic content showed a obvious lower tendency, but the organic content in 2008 was appreciably more than that in 2002. The organic conterit had significant positive or negative correlation with available sulfur and water soluble chloride, and had extremely significant positive correlation with texture, total nitrogen, total phosphorus, total potassium, alkaline hydrolytic nitrogen, available potassium, slow-available potassium, exchangeable calcium and magnesium, available iron, available manganese and copper, and their relationships with soil nitrogen were the most close. Increasing the organic content was the most direct way for increasing soil nitrogen supplying capacity. The soil nutrient contents among different organic groups had significant or extremely significant differences. [ Conclusion ] To increase the soil organic content could appropriately increase the application of decomposed manure or return straw to soil in Nanping tobacco-growing areas. But if the organic content was more than 45. 00 g/kg, it should reduce or not fertilize the manure at current season, or fertilize the manure to preceding crops.%[目的]分析南平植烟土壤有机质状况及其与土壤养分的关系.[方法]利用南平植烟土壤普查资料,分析了土壤有机质现状、演变趋势及其与土壤养分的关系:[结果]南平植烟土壤有机质平均含量为(25.97±7.74)g/kg,CV为29.80%,其中15.00～25.00g/kg 的占46.03%,25.00～35.00g/kg的占37.56%.与1994年相比,南平植烟有机质含量呈明显降低趋势,但2008年比2002年又略有增加.土壤有机质与有效S、水溶性Cl含量之间呈显著正相关或负相关,与质地、全N、全N、全K、碱解N、速效K、缓效K、交换性Ca和交换性Mg及有效Fe、Mn、Cu含量之间呈极显著正相关,且与土壤N素的关系最为密切,提高土壤有机质最直接的影响是土壤供氮能力的增强土壤有机质分组后,其养分含量在组间存在显著或极显著差异.[结论)南平烟区应适当增施腐熟有机肥或实施秸秆还田等增加土壤有机质含量,在少数有机质超过45.00 g/kg的烟区,烤烟当季应少施或不施有机肥,或将有机肥在烤烟前茬作物上施用.
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