Different sources of nitrogen fertilizer in rainfed maize grown in a semiarid environment

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorState University of Acaraú Valley-
Autor(es): dc.contributorFederal University of Ceará-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorFederal University of Piauí-
Autor(es): dc.contributorEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)-
Autor(es): dc.creatorAraújo, Maria Diana Melo-
Autor(es): dc.creatorPrimo, Anaclaudia Alves-
Autor(es): dc.creatorFernandes, Jose Kioma Sousa-
Autor(es): dc.creatorVieira, Lucas Vasconcelos-
Autor(es): dc.creatorClark, Marcus Vinícius Guimarães-
Autor(es): dc.creatorGuedes, Fernando Lisboa-
Autor(es): dc.creatorPompeu, Roberto Claudio Fernandes Franco-
Autor(es): dc.creatorSagrilo, Edvaldo-
Autor(es): dc.creatorSouza, Henrique Antunes de-
Data de aceite: dc.date.accessioned2025-08-21T20:10:13Z-
Data de disponibilização: dc.date.available2025-08-21T20:10:13Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2023-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1080/15324982.2023.2240745-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/306929-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/306929-
Descrição: dc.descriptionAlthough nitrogen is the nutrient most required by maize, doses of N lower than those recommended are applied to maize grown in semiarid environments, which limits the achievement of profitable yields. The objective of this study was to evaluate changes in soil fertility, nutritional status and dry matter production of maize plants fertilized with organic and mineral fertilizers in a semiarid region. A factorial experiment was carried out in Sobral, Ceará state, Brazil, in a randomized block design. The factors were two N sources (organic compost and urea), and four N rates: 27.5, 55, 110 and 165 kg ha−1, with three replications. We assessed variables associated with soil fertility, plant nutritional status, chlorophyll content, grain yield and total dry matter production. The highest rates of organic compost resulted in the highest levels of P (17.7 mg dm−3) and K (102.2 mg dm−3) in soil when compared to the control (7.7 and 69.0 mg dm−3, respectively). However, organic compost rates below 110 kg ha−1 of N-equivalent fertilizer were not enough to supply the plants’ demand for P and K. Low N rates promoted a decrease in soil inorganic N in the second year of application. Applying urea to maize plants led to greater dry matter production than organic compost in the second consecutive crop season. The use of organic compost at rates lower than 110 kg ha−1 of N-equivalent fertilizer decreases soil fertility and has no impact on maize dry matter production.-
Descrição: dc.descriptionCenter of Agrarian and Biological Sciences State University of Acaraú Valley, Ceará-
Descrição: dc.descriptionDepartment of Biology Federal University of Ceará, Ceará-
Descrição: dc.descriptionSchool of Agriculture Sciences São Paulo State University (Unesp), São Paulo-
Descrição: dc.descriptionCenter of Agrarian Sciences Federal University of Piauí, Piauí-
Descrição: dc.descriptionEmbrapa Goats and Sheep Brazilian Agricultural Research Corporation, Ceará-
Descrição: dc.descriptionEmbrapa Mid-North Brazilian Agricultural Research Corporation, Piauí-
Descrição: dc.descriptionSchool of Agriculture Sciences São Paulo State University (Unesp), São Paulo-
Formato: dc.format26-45-
Idioma: dc.languageen-
Relação: dc.relationArid Land Research and Management-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectnutritional status-
Palavras-chave: dc.subjectOrganic fertilization-
Palavras-chave: dc.subjectsemiarid region-
Palavras-chave: dc.subjectsoil fertility-
Palavras-chave: dc.subjectZea mays-
Título: dc.titleDifferent sources of nitrogen fertilizer in rainfed maize grown in a semiarid environment-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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