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本文参照第二次全国土壤普查的调查项目和分级标准，考虑土壤主要理化性质，将土壤属性值分级标准化，得到定量、连续、无量纲、且可比性强的标准化值，再用修改的内梅罗公式计算土壤综合肥力系数，反映了植物生长最小因子律。该法能较全面又较简单地定量化反映土壤肥力水平。把该法应用于评价广东省鹤山县的土壤肥力状况也比较符合实际。土壤肥力系数与常年水稻产量具有显著的相关性，且能够指导土壤的改良利用方向
In this paper, with reference to the survey items and grading standards of the Second National Soil Census, taking into account the main physical and chemical properties of soil, the soil properties were classified and standardized to obtain quantitative, continuous, dimensionless and comparability standardized values, Luo formula to calculate soil comprehensive fertility coefficient, reflecting the law of plant growth minimum factor. The method can more comprehensive and simple quantitative reflect the level of soil fertility. The application of this method to appraise the status of soil fertility in Heshan County, Guangdong Province is also more realistic. Soil fertility coefficient and perennial rice yield have significant correlation, and can guide the direction of soil improvement and utilization