田间尺度下农地土壤质量评价——以榆林市榆阳区芹河乡为例

Publisher: 国家哲学社会科学学术期刊数据库

E-ISSN: 1672-2914|31|2|71-74

ISSN: 1672-2914

Source: 咸阳师范学院学报, Vol.31, Iss.2, 2016-01, pp. : 71-74

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Abstract