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Registro Completo |
Biblioteca(s): |
Embrapa Algodão. |
Data corrente: |
04/02/2023 |
Data da última atualização: |
04/02/2023 |
Autoria: |
LIMA, J. A.; FREITAS, W. P. de; SILVA, R. R. da; OLIVEIRA, J. de M.; BORIN, A. L. D. C.; MADARI, B. E.; FERREIRA, A. C. de B.; MACHADO, P. L. O. de A. |
Afiliação: |
JULIANA ALVES LIMA, bolsista CNPAF; WBEGNE FERREIRA DE FREITAS, bolsista CNPAF; RYAN RODRIGUES DA SILVA, bolsista CNPAF; JANAÍNA DE MOURA OLIVEIRA, pós-doutoranda CNPAF; ANA LUIZA DIAS COELHO BORIN, CNPAF; BEATA EMOKE MADARI, CNPAF; ALEXANDRE CUNHA DE B FERREIRA, CNPA; PEDRO LUIZ OLIVEIRA DE A MACHADO, CNPAF. |
Título: |
Balanço de NPK em sistemas intensivos de produção soja-algodão como critério para otimizar o uso de fertilizantes. |
Ano de publicação: |
2022 |
Fonte/Imprenta: |
In: SEMINÁRIO JOVENS TALENTOS, 16., 2022, Santo Antônio de Goiás. Resumos... Brasília, DF: Embrapa; Santo Antônio de Goiás: Embrapa Arroz e Feijão, 2022. |
Páginas: |
p. 39. |
ISBN: |
978-65-89957-37-9 |
Idioma: |
Português |
Conteúdo: |
O Balanço de Nutrientes (BN) é a diferença entre as entradas de nutrientes via fertilizantes e as saídas das lavouras por meio das colheitas. Em solos com a fertilidade corrigida
ao longo dos anos de cultivo, o BN pode ser uma metodologia útil para o uso racional de fertilizantes, simbolizando um importante passo no caminho da sustentabilidade, com elevadas produtividades, redução dos custos e melhoria do ambiente. Este estudo objetivou compreender o BN no sistema de produção sucessão soja-algodão, em sete talhões
de quatro fazendas em Mato Grosso, MT, em solos de texturas contrastantes, na safra 2020/2021. |
Thesagro: |
Algodão; Fertilizante; Nutriente; Soja. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
Marc: |
LEADER 01530nam a2200265 a 4500 001 2151479 005 2023-02-04 008 2022 bl uuuu u01u1 u #d 020 $a978-65-89957-37-9 100 1 $aLIMA, J. A. 245 $aBalanço de NPK em sistemas intensivos de produção soja-algodão como critério para otimizar o uso de fertilizantes.$h[electronic resource] 260 $aIn: SEMINÁRIO JOVENS TALENTOS, 16., 2022, Santo Antônio de Goiás. Resumos... Brasília, DF: Embrapa; Santo Antônio de Goiás: Embrapa Arroz e Feijão$c2022 300 $ap. 39. 520 $aO Balanço de Nutrientes (BN) é a diferença entre as entradas de nutrientes via fertilizantes e as saídas das lavouras por meio das colheitas. Em solos com a fertilidade corrigida ao longo dos anos de cultivo, o BN pode ser uma metodologia útil para o uso racional de fertilizantes, simbolizando um importante passo no caminho da sustentabilidade, com elevadas produtividades, redução dos custos e melhoria do ambiente. Este estudo objetivou compreender o BN no sistema de produção sucessão soja-algodão, em sete talhões de quatro fazendas em Mato Grosso, MT, em solos de texturas contrastantes, na safra 2020/2021. 650 $aAlgodão 650 $aFertilizante 650 $aNutriente 650 $aSoja 700 1 $aFREITAS, W. P. de 700 1 $aSILVA, R. R. da 700 1 $aOLIVEIRA, J. de M. 700 1 $aBORIN, A. L. D. C. 700 1 $aMADARI, B. E. 700 1 $aFERREIRA, A. C. de B. 700 1 $aMACHADO, P. L. O. de A.
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![](/consulta/web/img/deny.png) | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Milho e Sorgo. |
Data corrente: |
23/08/2020 |
Data da última atualização: |
28/08/2023 |
Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
Autoria: |
COSTA, T. C. e C. da; VIANA, J. H. M.; RIBEIRO, J. L. |
Afiliação: |
THOMAZ CORREA E CASTRO DA COSTA, CNPMS; JOAO HERBERT MOREIRA VIANA, CNPMS; Juliana Leite Ribeiro, Universidade Federal de São João del-Rei. |
Título: |
Models for semideciduous seasonal forest production of leaves and deciduousness: recent perspectives. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
In: YU, H. (ed.). International research in environment, geography and earth science. Hooghly: Book Publisher International, 2020. |
Volume: |
v. 2. |
Páginas: |
p. 41-72. |
DOI: |
978-93-90149-38-4 |
Idioma: |
Inglês |
Conteúdo: |
The climate, mainly the water availability and temperature, drives the renewal of biomass in seasonal forest ecosystem, and the greenness and leaf area of its canopy are responsive by climate variations. The renewal of leaves indicated by deciduousness can be model to obtain the estimates of this component as an additional compartment of the ecosystem carbon sink. In this study was investigated the relationship between litterfall, climate variables, Leaf Area Index (LAI), and Normalized Difference Vegetation Index (NDVI) in semideciduous forests, to test models to explain the leaf production and deciduousness by time. The data were obtained in satellite images and in plots installed at forest monitoring sites, visited monthly. The tests were conducted in eight semideciduous forest fragments. Permanent plots were monitored monthly and LAI measurements and weighing of litterfall deposited in nets. In this time, Landsat and IRS satellite images were obtained and processed for generation of NDVI. The water balance was calculated for each day. The relationship among the variables ?leaf dry weight?, ?LAI?, ?NDVI? and climate variables were verified and regression models was build and evaluated. With monitoring of the sites, the model was validated and reviewed with new variables and data and three equations were compared. It is possible to estimate the fall and renew of leaves biomass in semideciduous forests with reasonable precision. This study showed that only the leaf component of the litterfall of a semideciduous forest in tropical climate can capture average 6.5 Mg.ha-1 .yr-1 of CO2 and this amount can be estimated using climate, biophysics and vegetation index variables. MenosThe climate, mainly the water availability and temperature, drives the renewal of biomass in seasonal forest ecosystem, and the greenness and leaf area of its canopy are responsive by climate variations. The renewal of leaves indicated by deciduousness can be model to obtain the estimates of this component as an additional compartment of the ecosystem carbon sink. In this study was investigated the relationship between litterfall, climate variables, Leaf Area Index (LAI), and Normalized Difference Vegetation Index (NDVI) in semideciduous forests, to test models to explain the leaf production and deciduousness by time. The data were obtained in satellite images and in plots installed at forest monitoring sites, visited monthly. The tests were conducted in eight semideciduous forest fragments. Permanent plots were monitored monthly and LAI measurements and weighing of litterfall deposited in nets. In this time, Landsat and IRS satellite images were obtained and processed for generation of NDVI. The water balance was calculated for each day. The relationship among the variables ?leaf dry weight?, ?LAI?, ?NDVI? and climate variables were verified and regression models was build and evaluated. With monitoring of the sites, the model was validated and reviewed with new variables and data and three equations were compared. It is possible to estimate the fall and renew of leaves biomass in semideciduous forests with reasonable precision. This study showed that only the leaf componen... Mostrar Tudo |
Palavras-Chave: |
NDVI; Thornthwaite. |
Thesagro: |
Carbono; Ecossistema; Floresta; Folha; Mudança Climática. |
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
Marc: |
LEADER 02526naa a2200265 a 4500 001 2124516 005 2023-08-28 008 2020 bl uuuu u00u1 u #d 024 7 $a978-93-90149-38-4$2DOI 100 1 $aCOSTA, T. C. e C. da 245 $aModels for semideciduous seasonal forest production of leaves and deciduousness$brecent perspectives.$h[electronic resource] 260 $c2020 300 $ap. 41-72. v. 2. 490 $vv. 2. 520 $aThe climate, mainly the water availability and temperature, drives the renewal of biomass in seasonal forest ecosystem, and the greenness and leaf area of its canopy are responsive by climate variations. The renewal of leaves indicated by deciduousness can be model to obtain the estimates of this component as an additional compartment of the ecosystem carbon sink. In this study was investigated the relationship between litterfall, climate variables, Leaf Area Index (LAI), and Normalized Difference Vegetation Index (NDVI) in semideciduous forests, to test models to explain the leaf production and deciduousness by time. The data were obtained in satellite images and in plots installed at forest monitoring sites, visited monthly. The tests were conducted in eight semideciduous forest fragments. Permanent plots were monitored monthly and LAI measurements and weighing of litterfall deposited in nets. In this time, Landsat and IRS satellite images were obtained and processed for generation of NDVI. The water balance was calculated for each day. The relationship among the variables ?leaf dry weight?, ?LAI?, ?NDVI? and climate variables were verified and regression models was build and evaluated. With monitoring of the sites, the model was validated and reviewed with new variables and data and three equations were compared. It is possible to estimate the fall and renew of leaves biomass in semideciduous forests with reasonable precision. This study showed that only the leaf component of the litterfall of a semideciduous forest in tropical climate can capture average 6.5 Mg.ha-1 .yr-1 of CO2 and this amount can be estimated using climate, biophysics and vegetation index variables. 650 $aCarbono 650 $aEcossistema 650 $aFloresta 650 $aFolha 650 $aMudança Climática 653 $aNDVI 653 $aThornthwaite 700 1 $aVIANA, J. H. M. 700 1 $aRIBEIRO, J. L. 773 $tIn: YU, H. (ed.). International research in environment, geography and earth science. Hooghly: Book Publisher International, 2020.
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