|
|
![](/consulta/web/img/deny.png) | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
Registro Completo |
Biblioteca(s): |
Embrapa Solos. |
Data corrente: |
11/08/2015 |
Data da última atualização: |
09/11/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
CHALK, P. M.; CRASWELL, E. T.; POLIDORO, J. C.; CHEN, D. |
Afiliação: |
PHILLIP M. CHALK, UNIVERSITY OF MELBOURNE; ERIC T. CRASWELL, AUSTRALIAN NATIONAL UNIVERSITY; JOSE CARLOS POLIDORO, CNPS; DELI CHEN, UNIVERSITY OF MELBOURNE. |
Título: |
Fate and efficiency of 15 N-labelled slow- and controlled-release fertilizers. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
Nutrient Cycling in Agroecosystems, v. 102, n. 2, p. 167-178, Jun. 2015. |
DOI: |
https://doi.org/10.1007/s10705-015-9697-2 |
Idioma: |
Inglês |
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 |
Palavras-Chave: |
Fertilizante de liberação lenta; Oxamida. |
Thesagro: |
Fertilizante. |
Thesaurus Nal: |
Fertilizers; Oxamide; Slow-release fertilizers. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Solos (CNPS) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
Registro Completo
Biblioteca(s): |
Embrapa Semiárido. |
Data corrente: |
21/12/1999 |
Data da última atualização: |
04/05/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
Internacional - A |
Autoria: |
MELO, A. M. Y.; SAGGIN JUNIOR, O. J.; LIMA FILHO, J. M. P.; MELO, N. F. de; MAIA, C. M. |
Afiliação: |
Adriana M. Yano Melo; Orivaldo J. Saggin Júnior, CPATSA; José Moacir Lima Filho, CPATSA; NATONIEL FRANKLIN DE MELO, CPATSA; Leonor C. Maia. |
Título: |
Effect of arbuscular mycorrhizal fungi on the acclimatization of micropropagated banana plantlets. |
Ano de publicação: |
1999 |
Fonte/Imprenta: |
Mycorrhiza, v. 9, p. 119-123, 1999. |
Idioma: |
Inglês |
Conteúdo: |
The effect of arbuscular mycorrhizal fungi (AMF) on micropropagated banana plantlets was evaluated during the acclimatization period. Plants were inoculated with Acaulospora scrobiculata, Glomus clarum or Glomus etunicatum. After cultivation in a greenhouse for 3 months, height, leaf area, fresh weight and dry matter of root and shoots, level of AMF colonization, nutrient level, photosynthesis and transpiration rate, water potential and stomatal conductance were measured. The number of AMF spores produceded in each treatment was also determined. Plantlets inoculated with Amf had greater height, leaf area and fresh weight of shoots and roots, as well as higher rates of photosynthesis and transpiration than controls. Plants inoculated with Glomus were superior in most of the evaluated parameters. |
Palavras-Chave: |
Acclimatization; Arbuscular mycorrhizal; Micorriza arbuscular. |
Thesagro: |
Aclimatação; Banana; Biotecnologia; Fungo; Micropropagação. |
Thesaurus NAL: |
biotechnology; fungi; micropropagation. |
Categoria do assunto: |
G Melhoramento Genético |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/176366/1/Separata-8957.pdf
|
Marc: |
LEADER 01628naa a2200301 a 4500 001 1133780 005 2018-05-04 008 1999 bl uuuu u00u1 u #d 100 1 $aMELO, A. M. Y. 245 $aEffect of arbuscular mycorrhizal fungi on the acclimatization of micropropagated banana plantlets. 260 $c1999 520 $aThe effect of arbuscular mycorrhizal fungi (AMF) on micropropagated banana plantlets was evaluated during the acclimatization period. Plants were inoculated with Acaulospora scrobiculata, Glomus clarum or Glomus etunicatum. After cultivation in a greenhouse for 3 months, height, leaf area, fresh weight and dry matter of root and shoots, level of AMF colonization, nutrient level, photosynthesis and transpiration rate, water potential and stomatal conductance were measured. The number of AMF spores produceded in each treatment was also determined. Plantlets inoculated with Amf had greater height, leaf area and fresh weight of shoots and roots, as well as higher rates of photosynthesis and transpiration than controls. Plants inoculated with Glomus were superior in most of the evaluated parameters. 650 $abiotechnology 650 $afungi 650 $amicropropagation 650 $aAclimatação 650 $aBanana 650 $aBiotecnologia 650 $aFungo 650 $aMicropropagação 653 $aAcclimatization 653 $aArbuscular mycorrhizal 653 $aMicorriza arbuscular 700 1 $aSAGGIN JUNIOR, O. J. 700 1 $aLIMA FILHO, J. M. P. 700 1 $aMELO, N. F. de 700 1 $aMAIA, C. M. 773 $tMycorrhiza$gv. 9, p. 119-123, 1999.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Semiárido (CPATSA) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Expressão de busca inválida. Verifique!!! |
|
|