By Bayu W.   Rethman N.   Hammes P.   Alemu G.   in Journal of Plant Nutrition

ISSN:0190-4167|29|2|391-407

Taylor & Francis Ltd‎(2006)‎

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By Marais D   Rethman N   Annandale J   in African Journal of Range and Forage Science

ISSN:1727-9380|23|3|165-169

Taylor & Francis Ltd‎(2006)‎

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By Smit G.N.   Rethman N.F.G.   in Journal of Arid Environments

ISSN:0140-1963|44|1|41-59

Academic Press‎(2000)‎

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By Marais D   Rethman N F G   Annandale J G   in African Journal of Range and Forage Science

ISSN:1727-9380|19|3|157-160

Taylor & Francis Ltd‎(2002)‎

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By Bayu W.   Rethman N.F.G.   Hammes P.S.   in Journal of Sustainable Agriculture

ISSN:1044-0046|25|2|113-136

Haworth Press‎(2005)‎

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By Bayu Wondimu   Rethman N.F.G.   Hammes P.S.   Pieterse P.A.   Grimbeek J.   Van Der Linde M.   in SINET: Ethiopian Journal of Science

ISSN:0379-2897|28|2|119-128

Faculty of Science, Addis Ababa, Ethiopia‎(2005)‎

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