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ISSN:0016-7061|92|1|111-123

Elsevier‎(1999)‎

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By IGWE C.   in Arid Land Research and Management

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Taylor & Francis Ltd‎(2004)‎

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By Igwe C. A.   in Arid Land Research and Management

ISSN:1532-4990|15|2|147-155

Taylor & Francis Ltd‎(2001)‎

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By Echezona B. C.   Igwe C. A.   in Journal of Plant Nutrition

ISSN:0190-4167|35|11|1601-1617

Taylor & Francis Ltd‎(2012)‎

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By Nwite J.   Igwe C.   Wakatsuki T.   in Paddy and Water Environment

ISSN:1611-2490|6|3|299-307

Springer Publishing Company ‎(2008)‎

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By Iwegbue C.   Isirimah N.   Igwe C.   Williams E.   in The Environmentalist

ISSN:0251-1088|26|2|123-128

Springer Publishing Company ‎(2006)‎

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By Obalum S. E.   Watanabe Y.   Igwe C. A.   Obi M. E.   Wakatsuki T.   in Communications in Soil Science and Plant Analysis

ISSN:0010-3624|44|12|1831-1848

Taylor & Francis Ltd‎(2013)‎

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