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Registro Completo |
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Biblioteca(s): |
Embrapa Clima Temperado; Embrapa Uva e Vinho. |
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Data corrente: |
03/12/2021 |
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Data da última atualização: |
14/07/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
TASSINARI, A.; SILVA, L. O. S. da; DRRESCHER, G. L.; OLIVEIRA, R. A. de; BALDI, E.; MELO, G. W. B. de; ZALAMENA, J.; MAYER, N. A.; GIACOMINI, S. J.; CARRANCA, C. L. de A. F.; FERREIRA, P. A. A.; PAULA, B. V. de; LOSS, A.; TOSELLI, M.; BRUNETTO, G. |
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Afiliação: |
ADRIELE TASSINARI, Federal University of Santa Maria; LINCON OLIVEIRA STEFANELLO DA SILVA, Federal University of Santa Maria; GERSON LAERSON DRESCHER, University of Arkansas; RODOLFO ASSIS DE OLIVEIRA, Federal University of Santa Catarina; ELENA BALDI, University of Bologna; GEORGE WELLINGTON BASTOS DE MELO, CNPUV; JOVANI ZALAMENA, Federal Institute of Education, Science and Technology of Rio Grande do Sul; NEWTON ALEX MAYER, CPACT; SANDRO JOSÉ GIACOMINI, Federal University of Santa Maria; CORINA LUISA DE ABREU FERNANDES CARRANCA, National Institute of Agricultural and Veterinary Research; PAULO ADEMAR AVELAR FERREIRA, Federal University of Santa Maria; BETANIA VAHL DE PAULA, Federal University of Santa Maria; ARCÂNGELO LOSS, Federal University of Santa Catarina; MORENO TOSELLI, University of Bologna; GUSTAVO BRUNETTO, Federal University of Santa Maria. |
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Título: |
Contribution of cover crop residue Decomposition to peach tree nitrogen nutrition. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Journal of Soil Science and Plant Nutrition, v. 21, p. 2124-2136, 2021. |
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DOI: |
https://doi.org/10.1007/s42729-021-00508-x |
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Idioma: |
Inglês |
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Conteúdo: |
Cover crop nitrogen (N) cycling has an important role in agricultural production and contributes to peach [Prunus persica (L.) Batsch] N nutrition. This study evaluated black oat (Avena strigosa Schreb) and ryegrass (Lolium multiflorum L.) residue decomposition dynamics, N recovery from cover crop residues, and N compartmentalization in peach tree organs. A 2-year field trial was developed with labeled (3.6?4.0 atom% 15N excess) cover crop shoot biomass application in a 5-year-old peach orchard. The region?s climate is warm temperate (Cfb), and the soil is classified as a Typic Hapludalf. Litter bags with unlabeled shoot residues were also deposited in the orchard to assess biomass, carbon (C), N, lignin, cellulose, and non-structural biomass decomposition dynamics. After 13 months, the leaves, trunk, and roots showed the greatest proportion of N derived from residues (Ndfr) (35.4, 25.1, and 22.4%, respectively) while the greatest concentrations of 15N and Ndfr occurred in roots <2 mm (0.0376 and 0.94%, respectively). The N derived from cover crop shoots in the second production cycle was similar among tree organs. Ryegrass residues presented the highest decomposition constant (k) values for dry matter, total organic carbon (TOC), cellulose, and lignin. Hence, black oat residues presented a higher half-life (t½) for dry matter, TOC, total N, cellulose, and lignin. The N derived from black oat and ryegrass residues in mature trees was expressively low (<1%) and similar between species. Within organs, the highest Ndfr occurred in peach leaves during the flowering stage, when the greatest residue decomposition rate also occurred. Soil N and plant internal N reserves are the major N sources for newly formed organs, but greater contributions to tree N nutrition may occur with long-term cover crop residue deposition and different plant species. MenosCover crop nitrogen (N) cycling has an important role in agricultural production and contributes to peach [Prunus persica (L.) Batsch] N nutrition. This study evaluated black oat (Avena strigosa Schreb) and ryegrass (Lolium multiflorum L.) residue decomposition dynamics, N recovery from cover crop residues, and N compartmentalization in peach tree organs. A 2-year field trial was developed with labeled (3.6?4.0 atom% 15N excess) cover crop shoot biomass application in a 5-year-old peach orchard. The region?s climate is warm temperate (Cfb), and the soil is classified as a Typic Hapludalf. Litter bags with unlabeled shoot residues were also deposited in the orchard to assess biomass, carbon (C), N, lignin, cellulose, and non-structural biomass decomposition dynamics. After 13 months, the leaves, trunk, and roots showed the greatest proportion of N derived from residues (Ndfr) (35.4, 25.1, and 22.4%, respectively) while the greatest concentrations of 15N and Ndfr occurred in roots <2 mm (0.0376 and 0.94%, respectively). The N derived from cover crop shoots in the second production cycle was similar among tree organs. Ryegrass residues presented the highest decomposition constant (k) values for dry matter, total organic carbon (TOC), cellulose, and lignin. Hence, black oat residues presented a higher half-life (t½) for dry matter, TOC, total N, cellulose, and lignin. The N derived from black oat and ryegrass residues in mature trees was expressively low (<1%) and similar betwee... Mostrar Tudo |
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Palavras-Chave: |
15N recovery; Ncycling; Prunus persica L Batsch. |
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Thesagro: |
Avena Strigosa; Lolium Multiflorum; Nitrogênio; Pêssego. |
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Categoria do assunto: |
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F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1144663/1/Tassinari2021-P2124-2136.pdf
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Marc: |
LEADER 02996naa a2200385 a 4500
001 2144663
005 2022-07-14
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s42729-021-00508-x$2DOI
100 1 $aTASSINARI, A.
245 $aContribution of cover crop residue Decomposition to peach tree nitrogen nutrition.$h[electronic resource]
260 $c2021
520 $aCover crop nitrogen (N) cycling has an important role in agricultural production and contributes to peach [Prunus persica (L.) Batsch] N nutrition. This study evaluated black oat (Avena strigosa Schreb) and ryegrass (Lolium multiflorum L.) residue decomposition dynamics, N recovery from cover crop residues, and N compartmentalization in peach tree organs. A 2-year field trial was developed with labeled (3.6?4.0 atom% 15N excess) cover crop shoot biomass application in a 5-year-old peach orchard. The region?s climate is warm temperate (Cfb), and the soil is classified as a Typic Hapludalf. Litter bags with unlabeled shoot residues were also deposited in the orchard to assess biomass, carbon (C), N, lignin, cellulose, and non-structural biomass decomposition dynamics. After 13 months, the leaves, trunk, and roots showed the greatest proportion of N derived from residues (Ndfr) (35.4, 25.1, and 22.4%, respectively) while the greatest concentrations of 15N and Ndfr occurred in roots <2 mm (0.0376 and 0.94%, respectively). The N derived from cover crop shoots in the second production cycle was similar among tree organs. Ryegrass residues presented the highest decomposition constant (k) values for dry matter, total organic carbon (TOC), cellulose, and lignin. Hence, black oat residues presented a higher half-life (t½) for dry matter, TOC, total N, cellulose, and lignin. The N derived from black oat and ryegrass residues in mature trees was expressively low (<1%) and similar between species. Within organs, the highest Ndfr occurred in peach leaves during the flowering stage, when the greatest residue decomposition rate also occurred. Soil N and plant internal N reserves are the major N sources for newly formed organs, but greater contributions to tree N nutrition may occur with long-term cover crop residue deposition and different plant species.
650 $aAvena Strigosa
650 $aLolium Multiflorum
650 $aNitrogênio
650 $aPêssego
653 $a15N recovery
653 $aNcycling
653 $aPrunus persica L Batsch
700 1 $aSILVA, L. O. S. da
700 1 $aDRRESCHER, G. L.
700 1 $aOLIVEIRA, R. A. de
700 1 $aBALDI, E.
700 1 $aMELO, G. W. B. de
700 1 $aZALAMENA, J.
700 1 $aMAYER, N. A.
700 1 $aGIACOMINI, S. J.
700 1 $aCARRANCA, C. L. de A. F.
700 1 $aFERREIRA, P. A. A.
700 1 $aPAULA, B. V. de
700 1 $aLOSS, A.
700 1 $aTOSELLI, M.
700 1 $aBRUNETTO, G.
773 $tJournal of Soil Science and Plant Nutrition$gv. 21, p. 2124-2136, 2021.
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Registro original: |
Embrapa Uva e Vinho (CNPUV) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agricultura Digital. Para informações adicionais entre em contato com cnptia.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agricultura Digital; Embrapa Pecuária Sudeste. |
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Data corrente: |
30/12/2020 |
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Data da última atualização: |
11/01/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
ANDRADE, T. S. de; ALBERTINI, T. Z.; BARIONI, L. G.; MEDEIROS, S. R. de; MILLEN, D. D.; SANTOS, A. C. R. dos; GOULART, R. S.; LANNA, D. P. D. |
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Afiliação: |
THIAGO SÉRGIO DE ANDRADE, Esalq/USP; TIAGO ZANETT ALBERTINI, @Tech; LUIS GUSTAVO BARIONI, CNPTIA; SERGIO RAPOSO DE MEDEIROS, CPPSE; DANILO DOMINGUES MILLEN, Unesp; ANTÔNIO CARLOS RAMOS DOS SANTOS, Esalq/USP; RODRIGO SILVA GOULART, FZEA/USP; DANTE PAZZANESE DUARTE LANNA, Esalq/USP. |
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Título: |
Perception of consultants, feedlot owners, and packers regarding the optimal economic slaughter endpoint in feedlots: a national survey in Brazil (Part I). |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Canadian Journal of Animal Science, v. 100, n. 4, p. 745-758, 2020. |
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DOI: |
https://doi.org/10.1139/cjas-2019-0219 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract. Little information exists regarding the optimal economic slaughter endpoint (OSE) for feedlot-finished cattle in Brazil. This study investigated the perceptions of Brazilian feeders regarding the optimal time for slaughter. A total of 52 interviews were conducted involving nutritionist-consultants (n=23), feedlot owners (n=21), and packer-owned feedlots (n=8). The results showed that 65% of the interviewees used weight and fat cover, both estimated visually, to determine the moment for slaughter. Identifying the ideal time for slaughter was considered a challenge for respondents, and 85% of them recognized that their current slaughter endpoint identification method needed improvements. Regarding decision support systems, 58% of respondents reported they would purchase a computer program to help identify OSE, and 73% would be interested in incorporating a prototype of such a system into their feedlots. Carcass dressing (38%) and price (25%) were the main factors driving the feeder´s choice of meatpacker, followed by carcass premiums (10%). Meat quality was found to be an irrelevant criterion for Brazilian meatpackers in awarding both premiums (5%) and deductions (3%). Slaughter endpoint is determined subjectively by the Brazilian feeders, based on a visual evaluation of both weight and fatness |
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Palavras-Chave: |
Carcass; Feedlot; Management. |
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Thesagro: |
Carcaça; Confinamento; Gado; Gado de Corte. |
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Thesaurus NAL: |
Beef; Beef cattle; Cattle; Feedlots. |
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Categoria do assunto: |
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X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02363naa a2200349 a 4500
001 2128876
005 2021-01-11
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1139/cjas-2019-0219$2DOI
100 1 $aANDRADE, T. S. de
245 $aPerception of consultants, feedlot owners, and packers regarding the optimal economic slaughter endpoint in feedlots$ba national survey in Brazil (Part I).$h[electronic resource]
260 $c2020
520 $aAbstract. Little information exists regarding the optimal economic slaughter endpoint (OSE) for feedlot-finished cattle in Brazil. This study investigated the perceptions of Brazilian feeders regarding the optimal time for slaughter. A total of 52 interviews were conducted involving nutritionist-consultants (n=23), feedlot owners (n=21), and packer-owned feedlots (n=8). The results showed that 65% of the interviewees used weight and fat cover, both estimated visually, to determine the moment for slaughter. Identifying the ideal time for slaughter was considered a challenge for respondents, and 85% of them recognized that their current slaughter endpoint identification method needed improvements. Regarding decision support systems, 58% of respondents reported they would purchase a computer program to help identify OSE, and 73% would be interested in incorporating a prototype of such a system into their feedlots. Carcass dressing (38%) and price (25%) were the main factors driving the feeder´s choice of meatpacker, followed by carcass premiums (10%). Meat quality was found to be an irrelevant criterion for Brazilian meatpackers in awarding both premiums (5%) and deductions (3%). Slaughter endpoint is determined subjectively by the Brazilian feeders, based on a visual evaluation of both weight and fatness
650 $aBeef
650 $aBeef cattle
650 $aCattle
650 $aFeedlots
650 $aCarcaça
650 $aConfinamento
650 $aGado
650 $aGado de Corte
653 $aCarcass
653 $aFeedlot
653 $aManagement
700 1 $aALBERTINI, T. Z.
700 1 $aBARIONI, L. G.
700 1 $aMEDEIROS, S. R. de
700 1 $aMILLEN, D. D.
700 1 $aSANTOS, A. C. R. dos
700 1 $aGOULART, R. S.
700 1 $aLANNA, D. P. D.
773 $tCanadian Journal of Animal Science$gv. 100, n. 4, p. 745-758, 2020.
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