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Urea and acidic phosphate interactions in fertilizer microsites and their effect on corn (Zea mays L.) yield and nutrient use efficiency

Posted on:1994-06-10Degree:Ph.DType:Dissertation
University:McGill University (Canada)Candidate:Fan, Ming XiangFull Text:PDF
GTID:1473390014993515Subject:Plant sciences
Abstract/Summary:
Fertilizer applications of urea and triple superphosphate (TSP) suffer from low efficiency for corn production. Band or broadcast application of urea with acidic-P fertilizers may increase fertilizer efficiency. Urea and acidic-P fertilizer interactions in soil-fertilizer microsites were investigated using two Quebec soils. Adding acidic phosphates such as TSP and monoammonium phosphate (MAP) to urea reduced pH in microsites, urea hydrolysis, NH...
Keywords/Search Tags:Urea, Fertilizer, Microsites
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