| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Pesca e Aquicultura. |
|
Data corrente: |
13/09/2016 |
|
Data da última atualização: |
07/03/2017 |
|
Tipo da produção científica: |
Folder/Folheto/Cartilha |
|
Autoria: |
BORTOLON, L.; BORTOLON, E. S. O.; CAMARGO, F. P. de. |
|
Afiliação: |
LEANDRO BORTOLON, CNPASA; ELISANDRA SOLANGE OLIVEIRA BORTOLON, CNPASA; FRANCELINO PETENO DE CAMARGO, CNPASA. |
|
Título: |
Balanço de nutrientes em sistemas agrícolas: importância do manejo de nutrientes em safras de quebra de produtividade. |
|
Ano de publicação: |
2016 |
|
Fonte/Imprenta: |
Palmas: Embrapa Pesca e Aquicultura, 2016. |
|
Páginas: |
3 p. |
|
Série: |
(Embrapa Pesca e Aquicultura. Fronteira agrícola, 14). |
|
Idioma: |
Português |
|
Conteúdo: |
Os fertilizantes representam hoje mais de 50% do custo de produção de alimentos, principalmente nos sistemas estabelecidos que envolvem soja, milho e integração lavoura-pecuária. A eficiência no uso de nutrientes é uma medida aplicada em que se considera, geralmente, a relação entre a quantidade produzida de biomassa vegetal ou de grãos e a quantidade aplicada de um determinado nutriente (doses). No entanto, de forma prática, o balanço de nutrientes é uma ferramenta de fácil aplicação em escala de campo que pode dar um direcionamento para o manejo da adubação. O balanço de nutrientes se torna ainda mais importante em safras onde houve quebra de produtividade, gerando questionamentos quanto ao manejo da adubação para a safra seguinte. |
|
Thesagro: |
Fertilizante; Nutriente; Sistema de cultivo. |
|
Categoria do assunto: |
A Sistemas de Cultivo |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/147298/1/CNPASA-2016-fa14.pdf
|
|
Marc: |
LEADER 01403nam a2200193 a 4500
001 2052725
005 2017-03-07
008 2016 bl uuuu u00u1 u #d
100 1 $aBORTOLON, L.
245 $aBalanço de nutrientes em sistemas agrícolas$bimportância do manejo de nutrientes em safras de quebra de produtividade.$h[electronic resource]
260 $aPalmas: Embrapa Pesca e Aquicultura$c2016
300 $a3 p.
490 $a(Embrapa Pesca e Aquicultura. Fronteira agrícola, 14).
520 $aOs fertilizantes representam hoje mais de 50% do custo de produção de alimentos, principalmente nos sistemas estabelecidos que envolvem soja, milho e integração lavoura-pecuária. A eficiência no uso de nutrientes é uma medida aplicada em que se considera, geralmente, a relação entre a quantidade produzida de biomassa vegetal ou de grãos e a quantidade aplicada de um determinado nutriente (doses). No entanto, de forma prática, o balanço de nutrientes é uma ferramenta de fácil aplicação em escala de campo que pode dar um direcionamento para o manejo da adubação. O balanço de nutrientes se torna ainda mais importante em safras onde houve quebra de produtividade, gerando questionamentos quanto ao manejo da adubação para a safra seguinte.
650 $aFertilizante
650 $aNutriente
650 $aSistema de cultivo
700 1 $aBORTOLON, E. S. O.
700 1 $aCAMARGO, F. P. de
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Pesca e Aquicultura (CNPASA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Rondônia. |
|
Data corrente: |
02/04/2021 |
|
Data da última atualização: |
14/06/2021 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
A - 1 |
|
Autoria: |
THOMAS, E.; JANSEN, M.; CHIRIBOGA-ARROYO, F.; WADT, L. H. de O.; CORVERA-GOMRINGER, R.; ATKINSON, R. J.; BONSER, S. P.; VELASQUEZ-RAMIREZ, M. G.; LADD, B. |
|
Afiliação: |
EVERT THOMAS, Bioversity International, Lima, Peru; MEREL JANSEN, Institute of Terrestrial Ecosystems, Ecosystem Management, ETH Zürich / CIFOR, Lima, Peru; FIDEL CHIRIBOGA-ARROYO, Institute of Terrestrial Ecosystems, Ecosystem Management, ETH Zürich, Zurich, Switzerland; LUCIA HELENA DE OLIVEIRA WADT, CPAF-RO; RONALD CORVERA-GOMRINGER, Instituto de Investigaciones de la Amazonia Peruana – IIAP, Puerto Maldonado, Peru; RACHEL JUDITH ATKINSON, Bioversity International, Lima, Peru; STEPHEN P. BONSER, University of New South Wales, Sydney, NSW, Australia; MANUEL GABRIEL VELASQUEZ-RAMIREZ, Instituto de Investigaciones de la Amazonia Peruana – IIAP, Puerto Maldonado, Peru; BRENTON LADD, Escuela de Agroforestería, Universidad Científica del Sur, Lima, Peru. |
|
Título: |
Habitat quality differentiation and consequences for ecosystem service provision of an amazonian hyperdominant tree species. |
|
Ano de publicação: |
2021 |
|
Fonte/Imprenta: |
Frontiers in Plant Science, v. 12, 621064, Mar. 2021. |
|
ISSN: |
1664-462X |
|
DOI: |
https://doi.org/10.3389/fpls.2021.621064 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Ecosystem services of Amazonian forests are disproportionally produced by a limited set of hyperdominant tree species. Yet the spatial variation in the delivery of ecosystem services by individual hyperdominant species across their distribution ranges and corresponding environmental gradients is poorly understood. Here, we use the concept of habitat quality to unravel the effect of environmental gradients on seed production and aboveground biomass (AGB) of the Brazil nut, one of Amazonia's largest and most long-lived hyperdominants. We find that a range of climate and soil gradients create trade-offs between density and fitness of Brazil nut trees. Density responses to environmental gradients were in line with predictions under the Janzen-Connell and Herms-Mattson hypotheses, whereas tree fitness responses were in line with resource requirements of trees over their life cycle. These trade-offs resulted in divergent responses in area-based seed production and AGB. While seed production and AGB of individual trees (i.e., fitness) responded similarly to most environmental gradients, they showed opposite tendencies to tree density for almost half of the gradients. However, for gradients creating opposite fitness-density responses, area-based seed production was invariable, while trends in area-based AGB tended to mirror the response of tree density. We conclude that while the relation between environmental gradients and tree density is generally indicative of the response of AGB accumulation in a given area of forest, this is not necessarily the case for fruit production. MenosEcosystem services of Amazonian forests are disproportionally produced by a limited set of hyperdominant tree species. Yet the spatial variation in the delivery of ecosystem services by individual hyperdominant species across their distribution ranges and corresponding environmental gradients is poorly understood. Here, we use the concept of habitat quality to unravel the effect of environmental gradients on seed production and aboveground biomass (AGB) of the Brazil nut, one of Amazonia's largest and most long-lived hyperdominants. We find that a range of climate and soil gradients create trade-offs between density and fitness of Brazil nut trees. Density responses to environmental gradients were in line with predictions under the Janzen-Connell and Herms-Mattson hypotheses, whereas tree fitness responses were in line with resource requirements of trees over their life cycle. These trade-offs resulted in divergent responses in area-based seed production and AGB. While seed production and AGB of individual trees (i.e., fitness) responded similarly to most environmental gradients, they showed opposite tendencies to tree density for almost half of the gradients. However, for gradients creating opposite fitness-density responses, area-based seed production was invariable, while trends in area-based AGB tended to mirror the response of tree density. We conclude that while the relation between environmental gradients and tree density is generally indicative of the response of AGB... Mostrar Tudo |
|
Palavras-Chave: |
Biomassa aérea; Castanha do brasil; Environmental gradients; Espécies hiperdominantes; Gradiente ambiental; Growth differentiation balance framework; Hyperdominant tree species; Janzen-Connell hypothesis; Negative density dependence (NDD); Sequestro de carbono; Serviços ecossistêmicos. |
|
Thesagro: |
Bertholletia Excelsa; Castanha do Para; Essência Florestal; Produção de Sementes. |
|
Thesaurus NAL: |
Aboveground biomass; Brazil nuts; Carbon sequestration; Ecosystem services; Forest trees; Seedling production. |
|
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/222313/1/cpafro-18543.pdf
|
|
Marc: |
LEADER 03169naa a2200493 a 4500
001 2131025
005 2021-06-14
008 2021 bl uuuu u00u1 u #d
022 $a1664-462X
024 7 $ahttps://doi.org/10.3389/fpls.2021.621064$2DOI
100 1 $aTHOMAS, E.
245 $aHabitat quality differentiation and consequences for ecosystem service provision of an amazonian hyperdominant tree species.$h[electronic resource]
260 $c2021
520 $aEcosystem services of Amazonian forests are disproportionally produced by a limited set of hyperdominant tree species. Yet the spatial variation in the delivery of ecosystem services by individual hyperdominant species across their distribution ranges and corresponding environmental gradients is poorly understood. Here, we use the concept of habitat quality to unravel the effect of environmental gradients on seed production and aboveground biomass (AGB) of the Brazil nut, one of Amazonia's largest and most long-lived hyperdominants. We find that a range of climate and soil gradients create trade-offs between density and fitness of Brazil nut trees. Density responses to environmental gradients were in line with predictions under the Janzen-Connell and Herms-Mattson hypotheses, whereas tree fitness responses were in line with resource requirements of trees over their life cycle. These trade-offs resulted in divergent responses in area-based seed production and AGB. While seed production and AGB of individual trees (i.e., fitness) responded similarly to most environmental gradients, they showed opposite tendencies to tree density for almost half of the gradients. However, for gradients creating opposite fitness-density responses, area-based seed production was invariable, while trends in area-based AGB tended to mirror the response of tree density. We conclude that while the relation between environmental gradients and tree density is generally indicative of the response of AGB accumulation in a given area of forest, this is not necessarily the case for fruit production.
650 $aAboveground biomass
650 $aBrazil nuts
650 $aCarbon sequestration
650 $aEcosystem services
650 $aForest trees
650 $aSeedling production
650 $aBertholletia Excelsa
650 $aCastanha do Para
650 $aEssência Florestal
650 $aProdução de Sementes
653 $aBiomassa aérea
653 $aCastanha do brasil
653 $aEnvironmental gradients
653 $aEspécies hiperdominantes
653 $aGradiente ambiental
653 $aGrowth differentiation balance framework
653 $aHyperdominant tree species
653 $aJanzen-Connell hypothesis
653 $aNegative density dependence (NDD)
653 $aSequestro de carbono
653 $aServiços ecossistêmicos
700 1 $aJANSEN, M.
700 1 $aCHIRIBOGA-ARROYO, F.
700 1 $aWADT, L. H. de O.
700 1 $aCORVERA-GOMRINGER, R.
700 1 $aATKINSON, R. J.
700 1 $aBONSER, S. P.
700 1 $aVELASQUEZ-RAMIREZ, M. G.
700 1 $aLADD, B.
773 $tFrontiers in Plant Science$gv. 12, 621064, Mar. 2021.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Rondônia (CPAF-RO) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
