| Registro completo |
| Provedor de dados: |
Animal Sciences
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| País: |
Brazil
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| Título: |
Morphogenesis and structure of Tifton 85 cultivated in subtropical climate and fertilized with nitrogen
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| Autores: |
Tiecher, Diego Daniel
Rocha, Marta Gomes da
Pötter, Luciana
Salvador, Paulo Roberto
Bergoli, Tuani Lopes
Milanesi, Gabriela Descovi
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| Data: |
2016-11-07
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| Ano: |
2016
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| Palavras-chave: |
Zootecnia
Medicina Veterinária
Agronomia Cynodon spp.
Phyllochron
Marked tillers
Urea
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| Resumo: |
The experiment evaluated the morphogenesis and structure of Tifton 85 (Cynodon spp.) cultivated in subtropical climate and fertilized with nitrogen (N). The experiment was a completely randomized design with four levels of N (Zero; 75; 150 or 225 kg ha-1) in nine replicates per area. The experimental animals were Suffolk female lambs. The grazing method was continuous to maintain the sward height at 15 cm ± 10%. The stem expansion increased by 0.000027 cm degree-days-1 to each kg N applied (linear model). According to nonlinear model, the highest stem expansion (0.0226 cm degree-days-1) was observed with the use 220.1 kg ha-1 N. The leaf lifespan fitted a linear regression model, with increase of 50 degree-days leaf -1, comparing the levels zero and 225 kg ha-1 of N. According to nonlinear regression model, the longest leaf lifespan (407.1 degree-days) was observed with the use 208.8 kg ha-1 N. With the maintenance of sward height at approximately 15 cm, we recommended to use 200 kg ha-1 N in Tifton 85 cultivated in subtropical climate.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/32147
10.4025/actascianimsci.v38i4.32147
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| Editor: |
Editora da Universidade Estadual de Maringá
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| Relação: |
http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/32147/pdf
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| Formato: |
application/pdf
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| Fonte: |
Acta Scientiarum. Animal Sciences; v. 38, n. 4 (2016); 389-393
Acta Scientiarum. Animal Sciences; v. 38, n. 4 (2016); 389-393
1807-8672
1806-2636
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| Direitos: |
Direitos autorais 2016 Acta Scientiarum. Animal Sciences
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