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1. | | BOLKE, D. R.; HAYGERT-VELHO, I. M. P.; TIMM, L. C.; ALESSIO, D. R. M.; MITTELMANN, A.; FERREIRA, O. G. L.; LIMA, L. H. C.; VELHO, J. P. Production of annual ryegrass with different doses of nitrogen fertilization in topdressing. Semina: Ciências Agrárias, v. 40, n. 3, p. 1329-1338, 2019. Biblioteca(s): Embrapa Gado de Leite. |
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Registros recuperados : 1 | |
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Registro Completo
Biblioteca(s): |
Embrapa Gado de Leite. |
Data corrente: |
30/12/2019 |
Data da última atualização: |
16/05/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
B - 1 |
Autoria: |
BOLKE, D. R.; HAYGERT-VELHO, I. M. P.; TIMM, L. C.; ALESSIO, D. R. M.; MITTELMANN, A.; FERREIRA, O. G. L.; LIMA, L. H. C.; VELHO, J. P. |
Afiliação: |
DELVACIR REZENDE BOLKE, IFSUL; IONE MARIA PEREIRA HAYGERT-VELHO, UFSM; LUIZ CARLOS TIMM, UFSM; DILETA REGINA MORO ALESSIO, UNIVERSIDADE DO ESTADO DE SANTA CATARINA; ANDREA MITTELMANN, CNPGL; OTONIEL GETER LAUZ FERREIRA, UFPEL; LUÍS HENRIQUE CORTEZE LIMA, UFSM; JOÃO PEDRO VELHO, UFSM. |
Título: |
Production of annual ryegrass with different doses of nitrogen fertilization in topdressing. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
Semina: Ciências Agrárias, v. 40, n. 3, p. 1329-1338, 2019. |
DOI: |
https://doi.org/10.5433/1679-0359.2019v40n3p1329 |
Idioma: |
Inglês |
Conteúdo: |
The objective of this study was to assess the growth of annual ryegrass (Lolium multiflorum) cv. BRS Ponteio with different doses of nitrogen applied in the pasture, thereby adjusting their growth to the exponential growth model. A randomized block design was used with five nitrogen application rates (0, 150, 250, 350, and 450 kg N ha-1) and four replicates, applied in installments. Each plot measured 9 m2 . On April 15, 2014, 25 kg ha-1 of viable pure seeds of annual ryegrass were sown at a depth of 0.02 m, in 18 rows spaced at 0.17 m in each plot. Growth in the control treatment (zero nitrogen) pasture lasted 167 days with only three cuts, whereas in pastures treated with 350 and 450 kg N ha-1, growth was extended for an additional 45 days with a 333% increase in the number of cuts. The pastures were used for the same duration (188 days) in the treatments with 150 and 250 kg N ha-1, however, increased nitrogen resulted in two additional cuts and a shorter time interval between cuts. The time interval between each cut and the degree-days interacted dynamically causing distinct growth. Growth of the annual ryegrass BRS Ponteio without nitrogen application is poor and cannot be represented even by a first order linear model. The application of nitrogen topdressing, in the form of urea, decreases the time interval between cuts, increases the dry matter production per hectare, stimulates this production, and follows the exponential growth model. |
Palavras-Chave: |
Degree-days; Dry matter; Exponential growth model; Rate of accumulation; Thermal sum. |
Thesaurus NAL: |
Urea. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/207926/1/SeminaCiAg-Mittelmann-Production.pdf
|
Marc: |
LEADER 02345naa a2200289 a 4500 001 2117860 005 2024-05-16 008 2019 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.5433/1679-0359.2019v40n3p1329$2DOI 100 1 $aBOLKE, D. R. 245 $aProduction of annual ryegrass with different doses of nitrogen fertilization in topdressing.$h[electronic resource] 260 $c2019 520 $aThe objective of this study was to assess the growth of annual ryegrass (Lolium multiflorum) cv. BRS Ponteio with different doses of nitrogen applied in the pasture, thereby adjusting their growth to the exponential growth model. A randomized block design was used with five nitrogen application rates (0, 150, 250, 350, and 450 kg N ha-1) and four replicates, applied in installments. Each plot measured 9 m2 . On April 15, 2014, 25 kg ha-1 of viable pure seeds of annual ryegrass were sown at a depth of 0.02 m, in 18 rows spaced at 0.17 m in each plot. Growth in the control treatment (zero nitrogen) pasture lasted 167 days with only three cuts, whereas in pastures treated with 350 and 450 kg N ha-1, growth was extended for an additional 45 days with a 333% increase in the number of cuts. The pastures were used for the same duration (188 days) in the treatments with 150 and 250 kg N ha-1, however, increased nitrogen resulted in two additional cuts and a shorter time interval between cuts. The time interval between each cut and the degree-days interacted dynamically causing distinct growth. Growth of the annual ryegrass BRS Ponteio without nitrogen application is poor and cannot be represented even by a first order linear model. The application of nitrogen topdressing, in the form of urea, decreases the time interval between cuts, increases the dry matter production per hectare, stimulates this production, and follows the exponential growth model. 650 $aUrea 653 $aDegree-days 653 $aDry matter 653 $aExponential growth model 653 $aRate of accumulation 653 $aThermal sum 700 1 $aHAYGERT-VELHO, I. M. P. 700 1 $aTIMM, L. C. 700 1 $aALESSIO, D. R. M. 700 1 $aMITTELMANN, A. 700 1 $aFERREIRA, O. G. L. 700 1 $aLIMA, L. H. C. 700 1 $aVELHO, J. P. 773 $tSemina: Ciências Agrárias$gv. 40, n. 3, p. 1329-1338, 2019.
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Embrapa Gado de Leite (CNPGL) |
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