Grain yield of coffee plants fertilized with different doses of 20-00-20 NPK formulation under rainfed conditions

dc.contributor.authorTorres, Josemar Dávila
dc.contributor.authorEspindula, Marcelo Curitiba
dc.contributor.authorAraújo, Larissa Fatarelli Bento De
dc.contributor.authorMarcolan, Alaerto Luiz
dc.contributor.authorRocha, Rodrigo Barros
dc.date.accessioned2024-07-15T22:13:27Z
dc.date.available2024-07-15T22:13:27Z
dc.date.issued2021-07-12
dc.description.abstractLittle is known about the management of high-yield clonal Coffea canephora in the Amazonian Region, mainly for nutritional aspects and cultivation system efficiency. This study aimed to evaluate the influence of different nitrogen and potassium fertilization rates on coffee grain yield and fertilizer use efficiency of C. canephora trees. An experiment was performed at an experimental field of the Embrapa Rondônia in Porto Velho (RO), Brazil. It was carried out in a split-plot scheme with six doses of 20-00-20 NPK formulation (0; 250; 500; 1,000; 2,000; and 3,000 kg ha-1) and three years of evaluation (2014, 2015, and 2016). An interaction between fertilizer dose and crop year was observed. Fertilizer doses showed an exponential behavior, with maximum yields of 51, 114, and 79 bags ha-1 at 3,000 kg ha-1 in the crop years of 2014, 2015, and 2016, respectively. Such a behavior impacted average and accumulated yields in the three harvest seasons. As for crop year effect within each fertilizer dose, the highest yield was reached in the second harvest after pruning for renewal of orthotropic stems. Moreover, fertilizer use efficiency by plants decreased exponentially, with the highest value at the lowest dose. Increasing doses of 20-00-20 formulation promoted an exponential increase in grain yield but decreased its use efficiency by C. canephora plants. This management also stimulated a strong biannual production.pt_BR
dc.formatpdfpt_BR
dc.identifier.citationTORRES, J. D. et al. Grain yield of coffee plants fertilized with different doses of 20-00-20 NPK formulation under rainfed conditions. Revista Caatinga, Mossoró, v. 34, n. 2, p. 486 - 493, 12 jul. 2021.pt_BR
dc.identifier.issn1983-2125
dc.identifier.urihttps://doi.org/10.1590/1983-21252021v34n225rcpt_BR
dc.identifier.urihttp://www.sbicafe.ufv.br/handle/123456789/14457
dc.language.isoenpt_BR
dc.publisherUniversidade Federal Rural do Semi-Áridopt_BR
dc.relation.ispartofseriesRevista Caatinga;v. 34, n. 2, p. 486 - 493, 2021;
dc.rightsOpen Accesspt_BR
dc.subjectCoffea canephorapt_BR
dc.subjectNitrogenpt_BR
dc.subjectPotassiumpt_BR
dc.subjectFertilizer use efficiencypt_BR
dc.subject.classificationCafeicultura::Solos e nutrição do cafeeiropt_BR
dc.titleGrain yield of coffee plants fertilized with different doses of 20-00-20 NPK formulation under rainfed conditionspt_BR
dc.typeArtigopt_BR

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