A fuzzy mathematic method was used to make an overall evaluation of nutrient status of the farming brown forest soil of southeastern Tibet. This method was shown to be feasible in evaluation of soil nutrients with results being more accurate and reliable and the final outcome of the evaluation may directly express grading of soil nutrients.
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李萍.藏东南耕作棕壤养分模糊综合评价[J].土壤,2003,35(5):435-437,439. Li Ping. FUZZY OVERALL EVALUATION OF NUTRIENTS IN FARMING BROWN FOREST SOIL IN SOUTHEASTERN TIBET[J]. Soils,2003,35(5):435-437,439