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Registro Completo |
Biblioteca(s): |
Embrapa Pesca e Aquicultura. |
Data corrente: |
26/01/2018 |
Data da última atualização: |
26/01/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
KOHMANN, M. M.; SOLLENBERGER, L. E.; VENDRAMINI, J. M. B.; SILVEIRA, M. L.; MORENO, L. S. B. |
Afiliação: |
MARTA M. KOHMANN, UNIVERSITY OF FLORIDA; LYNN E. SOLLENBERGER, UNIVERSITY OF FLORIDA; JOAO M. B. VENDRAMINI, UNIVERSITY OF FLORIDA; MARIA L. SILVEIRA, UNIVERSITY OF FLORIDA; LEONARDO SIMOES DE BARROS MORENO, CNPASA. |
Título: |
Harvest stubble height and K fertilization affect performance of Jiggs and 'Tifton 85' bermudagrasses. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Crop Science, v. 57, n. 6, p. 3353-3359, Nov./Dec. 2017. |
DOI: |
10.2135/cropsci2017.05.0308 |
Idioma: |
Inglês |
Conteúdo: |
Use of Jiggs bermudagrass [Cynodon dactylon (L.) Pers.] for hay has increased in warm climates like southern Florida, but effects of defoliation and K fertilizer management on Jiggs adaptation to environments with frequent winter freezes are not known. During 2 yr, K fertilization (0, 17, and 34 kg K ha−1 harvest−1) and cutting stubble height (SH, 8 and 16 cm every 28 d) effects on herbage accumulation (HA), ground cover, K removal, and tissue and soil K were evaluated for Jiggs and ?Tifton 85? (Cynodon spp.) bermudagrasses. All treatments received 240 kg N ha-1 yr-1. Herbage accumulation was greater for 8- than 16-cm SH (8050 and 7330 kg ha-1 yr-1, respectively) and increased linearly from 7040 to 8120 kg ha-1 yr-1 with increasing K fertilization. Potassium fertilization did not affect grass percentage ground cover, but Jiggs had 17 (2014) and 40% (2015) greater cover than Tifton 85. Increasing K fertilization increased tissue K concentration (15 to 19 g kg-1 in 2014 and 13 to 25 g kg-1 in 2015) and K removal in HA (from 104 to 149 kg ha-1 in 2014 and 88 to 216 kg ha-1 in 2015). During 2 yr, soil-extractable K declined 6 mg kg-1 for the zero K level but increased 6 mg kg-1 when K was applied. In a cooler subtropical region characterized by frequent winter freezes and across a range of K fertilizer and SH levels, Jiggs sustained ground cover better than Tifton 85, but K fertilization did not affect persistence. |
Palavras-Chave: |
Nitrogen fertilization. |
Thesagro: |
Cynodon Dactylon; Grama bermuda; Proteina. |
Thesaurus Nal: |
Crude protein; Fertilizer application; Stubble. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
Marc: |
LEADER 02259naa a2200265 a 4500 001 2086425 005 2018-01-26 008 2017 bl uuuu u00u1 u #d 024 7 $a10.2135/cropsci2017.05.0308$2DOI 100 1 $aKOHMANN, M. M. 245 $aHarvest stubble height and K fertilization affect performance of Jiggs and 'Tifton 85' bermudagrasses.$h[electronic resource] 260 $c2017 520 $aUse of Jiggs bermudagrass [Cynodon dactylon (L.) Pers.] for hay has increased in warm climates like southern Florida, but effects of defoliation and K fertilizer management on Jiggs adaptation to environments with frequent winter freezes are not known. During 2 yr, K fertilization (0, 17, and 34 kg K ha−1 harvest−1) and cutting stubble height (SH, 8 and 16 cm every 28 d) effects on herbage accumulation (HA), ground cover, K removal, and tissue and soil K were evaluated for Jiggs and ?Tifton 85? (Cynodon spp.) bermudagrasses. All treatments received 240 kg N ha-1 yr-1. Herbage accumulation was greater for 8- than 16-cm SH (8050 and 7330 kg ha-1 yr-1, respectively) and increased linearly from 7040 to 8120 kg ha-1 yr-1 with increasing K fertilization. Potassium fertilization did not affect grass percentage ground cover, but Jiggs had 17 (2014) and 40% (2015) greater cover than Tifton 85. Increasing K fertilization increased tissue K concentration (15 to 19 g kg-1 in 2014 and 13 to 25 g kg-1 in 2015) and K removal in HA (from 104 to 149 kg ha-1 in 2014 and 88 to 216 kg ha-1 in 2015). During 2 yr, soil-extractable K declined 6 mg kg-1 for the zero K level but increased 6 mg kg-1 when K was applied. In a cooler subtropical region characterized by frequent winter freezes and across a range of K fertilizer and SH levels, Jiggs sustained ground cover better than Tifton 85, but K fertilization did not affect persistence. 650 $aCrude protein 650 $aFertilizer application 650 $aStubble 650 $aCynodon Dactylon 650 $aGrama bermuda 650 $aProteina 653 $aNitrogen fertilization 700 1 $aSOLLENBERGER, L. E. 700 1 $aVENDRAMINI, J. M. B. 700 1 $aSILVEIRA, M. L. 700 1 $aMORENO, L. S. B. 773 $tCrop Science$gv. 57, n. 6, p. 3353-3359, Nov./Dec. 2017.
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Embrapa Pesca e Aquicultura (CNPASA) |
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Biblioteca(s): |
Embrapa Rondônia. |
Data corrente: |
27/03/2017 |
Data da última atualização: |
27/03/2017 |
Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
Autoria: |
ESPINDULA, M. C.; SCHMIDT, R.; VERDIN FILHO, A. C.; FONSECA, A. F. A. da; DIAS, J. R. M. |
Afiliação: |
MARCELO CURITIBA ESPINDULA, CPAF-Rondonia; Raquel Schmidt, LITHOPLANT; Abraão Carlos Verdin Filho, INCAPER; AYMBIRE FRANCISCO A DA FONSECA, SAPC; Jairo Rafael Machado Dias, UNIR. |
Título: |
Poda de formação em cafeeiros Coffea canephora. |
Ano de publicação: |
2016 |
Fonte/Imprenta: |
Porto Velho: Embrapa Rondônia, 2016. |
Páginas: |
6 p. |
Série: |
(Embrapa Rondônia. Comunicado Técnico, 402). |
Idioma: |
Português |
Conteúdo: |
O comunicado reúne informações sobre o manejo da poda dos cafeeiros conilon e robusta no estado de Rondônia. |
Palavras-Chave: |
Café conilon; Manejo da poda. |
Thesagro: |
Café Robusta. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/158142/1/Espindula-COT-405.pdf
|
Marc: |
LEADER 00733nam a2200217 a 4500 001 2067652 005 2017-03-27 008 2016 bl uuuu u0uu1 u #d 100 1 $aESPINDULA, M. C. 245 $aPoda de formação em cafeeiros Coffea canephora.$h[electronic resource] 260 $aPorto Velho: Embrapa Rondônia$c2016 300 $a6 p. 490 $a(Embrapa Rondônia. Comunicado Técnico, 402). 520 $aO comunicado reúne informações sobre o manejo da poda dos cafeeiros conilon e robusta no estado de Rondônia. 650 $aCafé Robusta 653 $aCafé conilon 653 $aManejo da poda 700 1 $aSCHMIDT, R. 700 1 $aVERDIN FILHO, A. C. 700 1 $aFONSECA, A. F. A. da 700 1 $aDIAS, J. R. M.
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