Agronomic evaluation of leonardite on yield and chemical composition of canola and wheat
Leonardite is a naturally occurring material enriched in humic and other organic acids and is defined as oxidized lignite produced through the weathering of subbituminous coals and carbonaceous shales (Hoffman et al. 1993). In Canada, leonardite deposits have been discovered in Alberta and Saskatche...
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2012
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| Online Access: | http://hdl.handle.net/1993/7338 |
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