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Researched for the Soil Nutrition Correlation Coefficient at Dry Maize on the Weak Brown Earth of Lingshi
米泽民 李翠娥 郝铁锁 范百成 刘艳花
Journal of Agriculture . 2012, (6): 35 -48 .  DOI: 10.11924/j.issn.2095-4050.2012-xb0107