科学评价农业土壤的肥力，可为种植业结构调整和作物科学施肥提供科学依据。根据木垒县耕层土壤酸碱度和养分情况，以pH、有机质、碱解氮、有效磷、速效钾为土壤肥力指标，采用基于Fuzzy法得到的IFI值评价了木垒县农业土壤质量。结果表明，木垒县土壤含有机质14.85 g/kg、碱解氮72.10 mg/kg、有效磷14.94 mg/kg、速效钾275.07 mg/kg，pH为8.08。总体表现为土壤偏碱性，有机质和碱解氮缺乏，有效磷中等水平，速效钾极丰富。土壤肥力综合指数(IFI)平均值为0.541。木垒县农业土壤肥力英格堡乡、雀仁乡为2级，肥力较高、质量良好，其他乡镇为3级。综上，木垒县的农业土壤总体上属碱性，有机质、碱解氮、有效磷为农业土壤肥力的限制因子，pH和速效钾是主要影响因子，建议适量补充氮磷，增施有机肥。

Scientific evaluation of agricultural soil fertility can provide a scientific basis for the adjustment of planting structure and scientific fertilization of crops. Based on the pH and nutrient status of the cultivated soil in Mulei County, using pH, organic matter, alkali-hydrolyzable nitrogen, available phosphorus, and available potassium as soil fertility indicators, the fertility comprehensive index(IFI) value obtained based on the Fuzzy method was used to evaluate the agricultural soil quality of Mulei County. The results showed that the soil in Mulei County contained organic matter 14.85 g/kg, alkali-hydrolyzable nitrogen 72.10 mg/kg, available phosphorus 14.94 mg/kg, available potassium 275.07 mg/kg, with a pH of 8.08, indicating an alkaline nature of the soil. Organic matter and alkali-hydrolyzable nitrogen were deficient, available phosphorus was at a medium level, and available potassium was abundant. The average value of the soil IFI was 0.541. The agricultural soil fertility in Mulei County showed that Yinggebao Township and Queren Township were rated as level 2, with higher fertility and good quality, while other townships were rated as level 3. In summary, the agricultural soil in Mulei County is generally alkaline, with organic matter, alkali-hydrolyzable nitrogen, and available phosphorus as limiting factors for soil fertility, and pH and available potassium as the main influencing factors. It is recommended to appropriately supplement nitrogen and phosphorus and increase the application of organic fertilizers.

S158.5

昌吉州高层次人才赴晋培养项目；2018 — 2022年测土配方项目。