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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
11/08/2015 |
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Data da última atualização: |
09/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CHALK, P. M.; CRASWELL, E. T.; POLIDORO, J. C.; CHEN, D. |
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Afiliação: |
PHILLIP M. CHALK, UNIVERSITY OF MELBOURNE; ERIC T. CRASWELL, AUSTRALIAN NATIONAL UNIVERSITY; JOSE CARLOS POLIDORO, CNPS; DELI CHEN, UNIVERSITY OF MELBOURNE. |
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Título: |
Fate and efficiency of 15 N-labelled slow- and controlled-release fertilizers. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
Nutrient Cycling in Agroecosystems, v. 102, n. 2, p. 167-178, Jun. 2015. |
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DOI: |
https://doi.org/10.1007/s10705-015-9697-2 |
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Idioma: |
Inglês |
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Conteúdo: |
Slow- and controlled-release N fertilizers are designed to increase efficiency and reduce N losses by better synchronizing N availability with plant demand. This paper reviews the use of 15N with these fertilizers to collect quantitative data on the efficiency, residual value and N losses for which relatively few data are available compared with conventional labelled urea and ammonium-based fertilizers. In general, studies of slow-release forms (isobutylidene diurea, oxamide, ureaform) with rice and upland crops show one or more benefits, including improved N uptake efficiency, and reduced N losses via leaching or NH3 volatilization under conditions which favor such losses (coarse textured soils, alkaline pH, respectively). Benefits from residual 15N may accrue in the year following application. Studies with controlled-release 15N-labelled sulfur coated urea (SCU) show benefits in situations such as paddy soils where losses from broadcast urea are a substantial problem. In experiments with 15N polyolefin-coated urea (POCU), rice plant recovery of broadcast conventional urea or ammonium salts ranged from 24 % with losses of 50-45 % with losses of 33 %. Where 15N labelled SCU or POCU was used, the rice recovery ranged from 26 % with losses of 14-72 % with losses of 10 %. Experiments using POCU with corn, barley and potato show similar results. The paucity of published data obtained using 15N points to the need for further studies that will provide concrete evidence for the development of innovative fertilizers with enhanced efficiency and an evidence-based set of recommendations for their selection and use. MenosSlow- and controlled-release N fertilizers are designed to increase efficiency and reduce N losses by better synchronizing N availability with plant demand. This paper reviews the use of 15N with these fertilizers to collect quantitative data on the efficiency, residual value and N losses for which relatively few data are available compared with conventional labelled urea and ammonium-based fertilizers. In general, studies of slow-release forms (isobutylidene diurea, oxamide, ureaform) with rice and upland crops show one or more benefits, including improved N uptake efficiency, and reduced N losses via leaching or NH3 volatilization under conditions which favor such losses (coarse textured soils, alkaline pH, respectively). Benefits from residual 15N may accrue in the year following application. Studies with controlled-release 15N-labelled sulfur coated urea (SCU) show benefits in situations such as paddy soils where losses from broadcast urea are a substantial problem. In experiments with 15N polyolefin-coated urea (POCU), rice plant recovery of broadcast conventional urea or ammonium salts ranged from 24 % with losses of 50-45 % with losses of 33 %. Where 15N labelled SCU or POCU was used, the rice recovery ranged from 26 % with losses of 14-72 % with losses of 10 %. Experiments using POCU with corn, barley and potato show similar results. The paucity of published data obtained using 15N points to the need for further studies that will provide concrete evidence for the dev... Mostrar Tudo |
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Palavras-Chave: |
Fertilizante de liberação lenta; Oxamida. |
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Thesagro: |
Fertilizante. |
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Thesaurus Nal: |
Fertilizers; Oxamide; Slow-release fertilizers. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02376naa a2200241 a 4500
001 2021723
005 2021-11-09
008 2015 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1007/s10705-015-9697-2$2DOI
100 1 $aCHALK, P. M.
245 $aFate and efficiency of 15 N-labelled slow- and controlled-release fertilizers.$h[electronic resource]
260 $c2015
520 $aSlow- and controlled-release N fertilizers are designed to increase efficiency and reduce N losses by better synchronizing N availability with plant demand. This paper reviews the use of 15N with these fertilizers to collect quantitative data on the efficiency, residual value and N losses for which relatively few data are available compared with conventional labelled urea and ammonium-based fertilizers. In general, studies of slow-release forms (isobutylidene diurea, oxamide, ureaform) with rice and upland crops show one or more benefits, including improved N uptake efficiency, and reduced N losses via leaching or NH3 volatilization under conditions which favor such losses (coarse textured soils, alkaline pH, respectively). Benefits from residual 15N may accrue in the year following application. Studies with controlled-release 15N-labelled sulfur coated urea (SCU) show benefits in situations such as paddy soils where losses from broadcast urea are a substantial problem. In experiments with 15N polyolefin-coated urea (POCU), rice plant recovery of broadcast conventional urea or ammonium salts ranged from 24 % with losses of 50-45 % with losses of 33 %. Where 15N labelled SCU or POCU was used, the rice recovery ranged from 26 % with losses of 14-72 % with losses of 10 %. Experiments using POCU with corn, barley and potato show similar results. The paucity of published data obtained using 15N points to the need for further studies that will provide concrete evidence for the development of innovative fertilizers with enhanced efficiency and an evidence-based set of recommendations for their selection and use.
650 $aFertilizers
650 $aOxamide
650 $aSlow-release fertilizers
650 $aFertilizante
653 $aFertilizante de liberação lenta
653 $aOxamida
700 1 $aCRASWELL, E. T.
700 1 $aPOLIDORO, J. C.
700 1 $aCHEN, D.
773 $tNutrient Cycling in Agroecosystems$gv. 102, n. 2, p. 167-178, Jun. 2015.
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Registro original: |
Embrapa Solos (CNPS) |
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Biblioteca(s): |
Embrapa Amapá. |
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Data corrente: |
07/12/2020 |
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Data da última atualização: |
18/10/2022 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
LIMA, R. M. de; CANICEIRO, A. M. C.; SANTOS, U. R. A. dos; LIMA, J. de F. |
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Afiliação: |
ROGÉRIO MORAES DE LIMA, CPAF-AP; ALEXANDRE MAGNO COSTA CANICEIRO, Bolsista Pibic/CNPq/CPAF-AP; UCLEDIA ROBERTA ALBERTO DOS SANTOS, UFSC; JO DE FARIAS LIMA, CPAF-AP. |
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Título: |
Produção de jambu (Acmella oleracea) em subsistemas hidropônicos integrados ao cultivo de tambaqui (Colossoma macropomum). |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
In: JORNADA CIENTÍFICA DA EMBRAPA AMAPÁ, 6., 2020, Macapá. Resumos... Macapá: Embrapa Amapá, 2020. Editoras técnicas: Jamile da Costa Araújo e Ana Cláudia Lira-Guedes. |
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Idioma: |
Português |
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Conteúdo: |
Tendo em vista a demanda mundial por sistemas agropecuários mais produtivos e sustentáveis, o presente estudo avaliou o potencial de dois subsistemas hidropônicos para a produção de jambu (Acmella oleracea) integrados ao cultivo de tambaqui (Colossoma macropomum). O estudo foi estruturado em um delineamento experimental contendo dois tratamentos (bandejas flutuantes e técnica do filme de nutrientes) e 40 réplicas, sendo considerada, cada planta de jambu, uma réplica. |
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Palavras-Chave: |
Aquaponia. |
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Thesagro: |
Biomassa; Peixe de Água Doce; Produtividade. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/218860/1/CPAF-AP-2020-Producao-de-jambu.pdf
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Marc: |
LEADER 01233nam a2200193 a 4500
001 2127743
005 2022-10-18
008 2020 bl uuuu u00u1 u #d
100 1 $aLIMA, R. M. de
245 $aProdução de jambu (Acmella oleracea) em subsistemas hidropônicos integrados ao cultivo de tambaqui (Colossoma macropomum).$h[electronic resource]
260 $aIn: JORNADA CIENTÍFICA DA EMBRAPA AMAPÁ, 6., 2020, Macapá. Resumos... Macapá: Embrapa Amapá, 2020. Editoras técnicas: Jamile da Costa Araújo e Ana Cláudia Lira-Guedes.$c2020
520 $aTendo em vista a demanda mundial por sistemas agropecuários mais produtivos e sustentáveis, o presente estudo avaliou o potencial de dois subsistemas hidropônicos para a produção de jambu (Acmella oleracea) integrados ao cultivo de tambaqui (Colossoma macropomum). O estudo foi estruturado em um delineamento experimental contendo dois tratamentos (bandejas flutuantes e técnica do filme de nutrientes) e 40 réplicas, sendo considerada, cada planta de jambu, uma réplica.
650 $aBiomassa
650 $aPeixe de Água Doce
650 $aProdutividade
653 $aAquaponia
700 1 $aCANICEIRO, A. M. C.
700 1 $aSANTOS, U. R. A. dos
700 1 $aLIMA, J. de F.
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