黄泛平原土壤中有效态锰的分布及锰肥的增产效果

丁维新

Special Distribution of Active Manganese in Soils and the Crop Growth in Xinxiang District of Henan

Ding Weixin

华北农学报 . 1994, (4): 98 -103 . DOI: 10.3321/j.issn:1000-7091.1994.04.019