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Registro Completo |
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Biblioteca(s): |
Embrapa Pesca e Aquicultura. |
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Data corrente: |
01/06/2022 |
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Data da última atualização: |
31/10/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LAGO, B. C.; FAVARIN, J. L.; ALMEIDA, R. E. M. de; PIEROZAN JUNIOR, C.; OLIVEIRA, S. M. de; TEZOTTO, T.; REIS, A. F. de B.; SIEBECKER, M. G. |
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Afiliação: |
BRUNO COCCO LAGO, ESALQ; JOSE LAERCIO FAVARIN, ESALQ; RODRIGO ESTEVAM MUNHOZ DE ALMEIDA, CNPASA; CLOVIS PIEROZAN JUNIOR, INSTITUTO FEDERAL DO PARANÁ; SILAS MACIEL DE OLIVEIRA, UNIVERSIDADE ESTADUAL DE MARINGÁ; TIAGO TEZOTTO, ESALQ; ANDRE FROES DE BORJA REIS, LOUISIANA STATE UNIVERSITY; MATTHEW G. SIEBECKER, TEXAS TECH UNIVERSITY, Lubbock-TX. |
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Título: |
Potassium application timing to improve corn K-fertilizer use in the oat-corn sequence: a tracer study for high yielding corn. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Journal of Plant Nutrition, v. 46, n. 4, p. 618-629, 2023. |
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ISSN: |
1532-4087 |
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DOI: |
https://doi.org/10.1080/01904167.2022.2067054 |
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Idioma: |
Inglês |
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Conteúdo: |
Corn performance is often unchanged by modifying the potassium fertilizer application timing, especially when soil K is not a limiting factor. Consequently, there is no literature reporting K timing on K-fertilizer contribution (or use) in high-yielding corn fields. We evaluated corn performance and K-fertilizer use based on timings of K-fertilizer application in the oat-corn sequence at subtropical environment with highly weathered soils. Additionally, we propose a timing strategy to ensure high corn use of fertilizer. The crop sequence study was conducted in two field experiments to investigate corn performance with respect to K-leaf, K uptake, and yield. Additionally, we evaluated K-fertilizer use by rubidium as potassium derived from fertilizer and potassium use efficiency. Application timings were two before and three during corn growth and development. Timings did not change corn performance even for late K application, and this was attributed mainly to soil K sufficiency levels. Corn K-fertilizer use, on the other hand, was different and higher for timings before (versus during) corn growth and development. Importantly, timing of K application ∼22 days before corn sowing improved corn K-fertilizer use approximately 2-fold versus the two late timings. Timings in oat or during corn sowing were identical for corn K-fertilizer use. We link our rainfall data with literature K-fertilizer movement (positional aspect), and the corn ability to acquire it. Application of K at 3-weeks before corn sowing constituted the optimal timing for fertilizer supply. This finding will assist farmers in large-scale areas to manage K-fertilizer application to promote higher efficiency. MenosCorn performance is often unchanged by modifying the potassium fertilizer application timing, especially when soil K is not a limiting factor. Consequently, there is no literature reporting K timing on K-fertilizer contribution (or use) in high-yielding corn fields. We evaluated corn performance and K-fertilizer use based on timings of K-fertilizer application in the oat-corn sequence at subtropical environment with highly weathered soils. Additionally, we propose a timing strategy to ensure high corn use of fertilizer. The crop sequence study was conducted in two field experiments to investigate corn performance with respect to K-leaf, K uptake, and yield. Additionally, we evaluated K-fertilizer use by rubidium as potassium derived from fertilizer and potassium use efficiency. Application timings were two before and three during corn growth and development. Timings did not change corn performance even for late K application, and this was attributed mainly to soil K sufficiency levels. Corn K-fertilizer use, on the other hand, was different and higher for timings before (versus during) corn growth and development. Importantly, timing of K application ∼22 days before corn sowing improved corn K-fertilizer use approximately 2-fold versus the two late timings. Timings in oat or during corn sowing were identical for corn K-fertilizer use. We link our rainfall data with literature K-fertilizer movement (positional aspect), and the corn ability to acquire it. Applicati... Mostrar Tudo |
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Palavras-Chave: |
Off-season. |
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Thesagro: |
Fertilizante; Milho; Potássio; Zea Mays. |
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Thesaurus Nal: |
Corn; Fertilizer requirements; Fertilizers; Rubidium. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02708naa a2200337 a 4500
001 2143628
005 2023-10-31
008 2023 bl uuuu u00u1 u #d
022 $a1532-4087
024 7 $ahttps://doi.org/10.1080/01904167.2022.2067054$2DOI
100 1 $aLAGO, B. C.
245 $aPotassium application timing to improve corn K-fertilizer use in the oat-corn sequence$ba tracer study for high yielding corn.$h[electronic resource]
260 $c2023
520 $aCorn performance is often unchanged by modifying the potassium fertilizer application timing, especially when soil K is not a limiting factor. Consequently, there is no literature reporting K timing on K-fertilizer contribution (or use) in high-yielding corn fields. We evaluated corn performance and K-fertilizer use based on timings of K-fertilizer application in the oat-corn sequence at subtropical environment with highly weathered soils. Additionally, we propose a timing strategy to ensure high corn use of fertilizer. The crop sequence study was conducted in two field experiments to investigate corn performance with respect to K-leaf, K uptake, and yield. Additionally, we evaluated K-fertilizer use by rubidium as potassium derived from fertilizer and potassium use efficiency. Application timings were two before and three during corn growth and development. Timings did not change corn performance even for late K application, and this was attributed mainly to soil K sufficiency levels. Corn K-fertilizer use, on the other hand, was different and higher for timings before (versus during) corn growth and development. Importantly, timing of K application ∼22 days before corn sowing improved corn K-fertilizer use approximately 2-fold versus the two late timings. Timings in oat or during corn sowing were identical for corn K-fertilizer use. We link our rainfall data with literature K-fertilizer movement (positional aspect), and the corn ability to acquire it. Application of K at 3-weeks before corn sowing constituted the optimal timing for fertilizer supply. This finding will assist farmers in large-scale areas to manage K-fertilizer application to promote higher efficiency.
650 $aCorn
650 $aFertilizer requirements
650 $aFertilizers
650 $aRubidium
650 $aFertilizante
650 $aMilho
650 $aPotássio
650 $aZea Mays
653 $aOff-season
700 1 $aFAVARIN, J. L.
700 1 $aALMEIDA, R. E. M. de
700 1 $aPIEROZAN JUNIOR, C.
700 1 $aOLIVEIRA, S. M. de
700 1 $aTEZOTTO, T.
700 1 $aREIS, A. F. de B.
700 1 $aSIEBECKER, M. G.
773 $tJournal of Plant Nutrition$gv. 46, n. 4, p. 618-629, 2023.
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Embrapa Pesca e Aquicultura (CNPASA) |
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| 1. |  | VILELA, L.; MIRANDA, L. N. de; PERES, J. R. R.; SOUZA, P. I. de M. de; SUHET, A. R.; SPEHAR, C. R.; VARGAS, M. A. T.; VIEIRA, R. D. A cultura da soja em solos de cerrados do Distrito Federal. 2.ed. Planaltina: EMBRAPA-CPAC, 1978. 16p. (EMBRAPA-CPAC. Comunicado Tecnico, 2).| Biblioteca(s): Embrapa Cerrados. |
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| 11. | | SILVA, D. R. G.; MARCHI, G.; SPEHAR, C. R.; GUILHERME, L. R. G.; FAQUIN, V. Agronomic efficiency of potassium fertilization in lettuce fertilized with alternative nutrient sources. Revista Ciência Agronômica, v. 44, n. 2, p. 267-277, abr-jun, 2013.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
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