By Mishra Umakant   Clay David   Trooien Todd   Dalsted Kevin   Malo Douglas   Carlson C. G.   in Journal of Plant Nutrition

ISSN:0190-4167|31|7|1188-1202

Taylor & Francis Ltd‎(2008)‎

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By Chintala Rajesh   Clay David E.   Schumacher Thomas E.   Malo Douglas D.   Julson James L.   in Analytical Letters

ISSN:0003-2719|46|3|532-538

Taylor & Francis Ltd‎(2013)‎

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