2014
DOI: 10.1590/s0100-06832014000300022
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Yield gains of coffee plants from phosphorus fertilization may not be generalized for high density planting

Abstract: SUMMARYInconclusive 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 Ger… Show more

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Cited by 5 publications
(4 citation statements)
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References 8 publications
(14 reference statements)
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“…The cl obtained by the BL method may be closer to the actual growing conditions of a coffee tree in full production, since studies have shown that perennials have a tendency to require less P during development (Novais et al, 1982;Valadares et al, 2014). This may be one of the reasons for the low response of coffee trees in production to phosphate fertilization; hence, it is important to establish the critical levels of P for each stage of plant growth, aiming at rational management of fertilization for coffee and meeting its demand throughout the crop cycle (Guimarães and Reis, 2010).…”
Section: Resultsmentioning
confidence: 96%
“…The cl obtained by the BL method may be closer to the actual growing conditions of a coffee tree in full production, since studies have shown that perennials have a tendency to require less P during development (Novais et al, 1982;Valadares et al, 2014). This may be one of the reasons for the low response of coffee trees in production to phosphate fertilization; hence, it is important to establish the critical levels of P for each stage of plant growth, aiming at rational management of fertilization for coffee and meeting its demand throughout the crop cycle (Guimarães and Reis, 2010).…”
Section: Resultsmentioning
confidence: 96%
“…Gallo et al (1999), por sua vez, analisando dois tipos de solo, constataram incrementos produtivos somente em solos com menores índices de fósforo. Já Valadares et al (2014) não observaram efeito da adição de fósforo (dose máxima de 400 kg ha -1 ano -1 de P2O5).…”
Section: Introductionunclassified
“…Outra hipótese pode estar relacionada à concentração inicial do fósforo no solo. De acordo com Valadares et al (2014), as respostas do cafeeiro à fertilização fosfatada não podem ser generalizadas e que ocorrências positivas se devem à baixa disponibilidade do macronutriente no solo (AMARAL et al, 2011;GUZMAN, 2017), característica comum em solos de lavouras cafeeiras no sul de Minas Gerais (CORRÊA et al, 2001). De acordo com Corrêa et al (2001), 72% das lavouras cafeeiras estudadas apresentaram níveis médio ou baixo de teores de fósforo no solo (2 mg dm -3 a 4 mg dm -3 e 4,1 mg dm -3 a 6 mg dm -3 respectivamente), conforme as classes de fertilidade do fósforo para manutenção da lavoura de café proposto pela Comissão de Fertilidade do Solo do Estado de Minas Gerais -CFSEMG (GUIMARÃES et al, 1999).…”
Section: Introductionunclassified
“…The study of variations in densities and planting patterns in coffee culture studies has involved biological and agronomical analyses, such as fruit production 9 as well as ecophysiological explanations about light access, water stress [10][11][12] and mineral absorption impacts. 13,14 Information about chemical modifications in coffee leaves and beans when subjected to different plant managements can be obtained by metabolomic analysis. It consists on sampling, sample preparation, use of instrumental analytical techniques, processing and interpretation of data.…”
Section: Introductionmentioning
confidence: 99%