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Yield gains of coffee plants from phosphorus fertilization may not be generalized for high density planting

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dc.contributor.author Valadares, Samuel Vasconcelos
dc.contributor.author Neves, Júlio César Lima
dc.contributor.author Novais, Roberto Ferreira
dc.contributor.author Rosa, Gustavo Nogueira Guedes Pereira
dc.contributor.author Martinez, Hermínia Emília Prieto
dc.contributor.author Alvarez V., Víctor Hugo
dc.date.accessioned 2017-12-07T09:48:06Z
dc.date.available 2017-12-07T09:48:06Z
dc.date.issued 2014-03-05
dc.identifier.issn 1806-9657
dc.identifier.uri http://dx.doi.org/10.1590/S0100-06832014000300022
dc.identifier.uri http://www.locus.ufv.br/handle/123456789/14537
dc.description.abstract Inconclusive responses of the adult coffee plant to phosphorus fertilization have been reported in the literature, especially when dealing with application of this nutrient in high density planting systems. Thus, this study was carried out for the purpose of assessing the response of adult coffee plants at high planting density in full production (in regard to yield and their biennial cycle/stability) to the addition of different sources and application rates of P in the Zona da Mata region of Minas Gerais, Brazil. The experiment with coffee plants of the Catucaí Amarelo 6/30 variety was carried out over four growing seasons. Treatments were arranged in a full factorial design [(4 × 3) + 1] consisting of four P sources (monoammonium phosphate, simple superphosphate, natural reactive rock phosphate from Algeria (Djebel-Onk), and FH 550®), three P rates (100, 200, and 400 kg ha-1 year-1 of P2O5), and an additional treatment without application of the nutrient (0 kg ha-¹ year-¹). A randomized block experimental design was used with three replicates. The four seasons were evaluated as subplots in a split plot experiment. The P contents in soil and leaves increased with increased rates of P application. However, there was no effect from P application on the yield and its biennial cycle/stability regardless of the source used over the four seasons assessed. en
dc.description.abstract Respostas não conclusivas do cafeeiro adulto à fertilização com fósforo têm sido reportadas na literatura, de modo particular quando se trata da aplicação desse nutriente em sistemas adensados de plantio. Assim, este trabalho foi realizado com o objetivo de avaliar a resposta de cafeeiros adensados adultos, em franca produção, quanto à produtividade e bienalidade, à adição de diferentes fontes e doses de P, na região da Zona da Mata de Minas Gerais. O experimento, com cafeeiros da variedade Catucaí Amarelo 6/30, foi conduzido durante quatro safras. A matriz experimental utilizada foi o fatorial completo [(4 × 3)+1], composto por quatro fontes (fosfato monoamônico, superfosfato simples, fosfato natural reativo da Argélia (Djebel-Onk) e FH 550®), três doses de P (100, 200, e 400 kg ha-1 ano-1 de P2O5) e um tratamento adicional, correspondente à dose de 0 kg ha-¹ ano-¹ de P2O5. O delineamento utilizado foi em blocos casualizados, com três repetições. As quatro safras constituíram faixas no tempo. Houve aumento dos teores de P no solo e nas folhas do cafeeiro com o aumento das doses aplicadas. Apesar disso, não houve efeito da adição de P sobre a produtividade e a bienalidade da produção das plantas, independentemente da fonte utilizada ao longo das quatro safras avaliadas. pt-BR
dc.format pdf pt-BR
dc.language.iso eng pt-BR
dc.publisher Revista Brasileira de Ciência do Solo pt-BR
dc.relation.ispartofseries 38(3), p. 905-911, May/June 2014 pt-BR
dc.rights Open Access pt-BR
dc.subject Coffea arabica pt-BR
dc.subject Mineral nutrition pt-BR
dc.subject Biennial cycle/stability pt-BR
dc.title Yield gains of coffee plants from phosphorus fertilization may not be generalized for high density planting en
dc.type Artigo pt-BR


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