土壤评价中参评因素的选定与分级指标的划分

沈汉

The Selection of Participating Factors in Soil Evaluation and the Determination of Gradation Indices

Shen Han

华北农学报 . 1990, (3): 63 -69 . DOI: 10.3321/j.issn:1000-7091.1990.03.013