| The soil samples in 0～25 cm layers were collected,and pH value, organic matter content, total N, total P, total K, alkali-hydrolysable N content, available P content, and available K content were measured, this study were conducted to investigate and evaluate the nutrients of soil of 10 towns of Yijun County using the improved Nemerow index method. As a whole, the soil fertility of each village and town was moderate in Yijun County. Wuli town, Leiyuan town, Chengguan town, Xicun town, Peng town, Qipan town, Yunmeng town, Taian town and Kuquan town had a soil fertility coefficients between 0.91～1.19（0.9～1.8），indicating a moderate fertility level. However, the poor soil fertility level of Yaosheng town was reflected by the soil fertility coefficient of 0.89 (＜0.9). The main limiting factors in this region were total N and available P. In summary, problems facing Yijun County in terms of soils are low level of nutrient content, uneven distribution of alkali-hydrolysable N and available K, inadequate amount of total N, total P and available P, and high pH value, implying a larger space of the improvement of soil fertility. |