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Registro Completo |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
31/05/2019 |
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Data da última atualização: |
20/08/2019 |
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Autoria: |
MEGDA, M. X. V.; MARIANO, E.; LEITE, J. M.; MEGDA, M. M.; TRIVELIN, P. C. O. |
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Afiliação: |
Michele Xavier Vieira Megda, Universidade Estadual de Montes Claros - UNIMONTES/Departamento de Ciências Agrárias; Eduardo Mariano, Universidade Estadual Paulista Júlio de Mesquita Filho - UNESP/Faculdade de Ciências Agronômicas/Departamento de Produção e Melhoramento Vegetal; José Marcos Leite, Compass Minerals; Marcio Mahmoud Megda, Universidade Estadual de Montes Claros - UNIMONTES/Departamento de Ciências Agrárias; Paulo Cesar Ocheuze Trivelin, Universidade de São Paulo - USP/Centro de Energia Nuclear na Agricultura - CENA. |
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Título: |
Ammonium chloride as an alternative source of nitrogen for sugarcane during two consecutive cycles. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, v. 54, e00329, 2019. |
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Idioma: |
Inglês |
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Notas: |
Título em português: Cloreto de amônio como fonte alternativa de nitrogênio para cana-de-açúcar durante dois ciclos consecutivos. |
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Conteúdo: |
The objective of this work was to evaluate the effect of the application of ammonium chloride as a nitrogen source for sugarcane (Saccharum sp.) on the development of the crop?s shoot and roots during two consecutive cycles. The experiment was conducted on a Typic Hapludox in the first and second sugarcane ratoons. The treatments consisted of four N doses (50, 100, 150, and 200 kg ha-1) applied as ammonium chloride (NH4Cl), besides a control, without the application of N. The increase in the NH4Cl dose increased in up to three times soil electrical conductivity in the layer of 0.0?0.2 m, with a consequent increase in the concentration of chlorine in leaves. In the second cycle, the contents of chlorine increased in 1,900 mg kg-1 in the leaf with the application of 200 mg kg-1 NH4Cl, when compared with the control. In the first cycle, the application of NH4Cl doses above 200 kg ha-1 N promoted a decrease in shoot productivity. In both cycles, there was no effect of the NH4Cl doses on root dry matter. High doses of NH4Cl, in consecutive sugarcane cycles, result in a decrease in the productivity of stalks for processing. |
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Palavras-Chave: |
Nitrogen fertilization; Stalk productivity. |
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Thesaurus Nal: |
Electrical conductivity; Root systems; Saccharum. |
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Categoria do assunto: |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/198026/1/Ammonium-chloride-as-an-alternative.pdf
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Marc: |
LEADER 01980naa a2200241 a 4500
001 2109551
005 2019-08-20
008 2019 bl uuuu u00u1 u #d
100 1 $aMEGDA, M. X. V.
245 $aAmmonium chloride as an alternative source of nitrogen for sugarcane during two consecutive cycles.$h[electronic resource]
260 $c2019
500 $aTítulo em português: Cloreto de amônio como fonte alternativa de nitrogênio para cana-de-açúcar durante dois ciclos consecutivos.
520 $aThe objective of this work was to evaluate the effect of the application of ammonium chloride as a nitrogen source for sugarcane (Saccharum sp.) on the development of the crop?s shoot and roots during two consecutive cycles. The experiment was conducted on a Typic Hapludox in the first and second sugarcane ratoons. The treatments consisted of four N doses (50, 100, 150, and 200 kg ha-1) applied as ammonium chloride (NH4Cl), besides a control, without the application of N. The increase in the NH4Cl dose increased in up to three times soil electrical conductivity in the layer of 0.0?0.2 m, with a consequent increase in the concentration of chlorine in leaves. In the second cycle, the contents of chlorine increased in 1,900 mg kg-1 in the leaf with the application of 200 mg kg-1 NH4Cl, when compared with the control. In the first cycle, the application of NH4Cl doses above 200 kg ha-1 N promoted a decrease in shoot productivity. In both cycles, there was no effect of the NH4Cl doses on root dry matter. High doses of NH4Cl, in consecutive sugarcane cycles, result in a decrease in the productivity of stalks for processing.
650 $aElectrical conductivity
650 $aRoot systems
650 $aSaccharum
653 $aNitrogen fertilization
653 $aStalk productivity
700 1 $aMARIANO, E.
700 1 $aLEITE, J. M.
700 1 $aMEGDA, M. M.
700 1 $aTRIVELIN, P. C. O.
773 $tPesquisa Agropecuária Brasileira$gv. 54, e00329, 2019.
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Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Instrumentação. Para informações adicionais entre em contato com cnpdia.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Cerrados; Embrapa Instrumentação; Embrapa Pecuária Sudeste. |
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Data corrente: |
01/12/2022 |
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Data da última atualização: |
01/12/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
SANTOS, J. V. dos; BENTO, L. R.; BRESOLIN, J. D.; FOSCHINI, M. M.; OLIVEIRA, P. P. A.; PEZZOPANE, J. R. M.; BERNARDI, A. C. de C.; MENDES, I. C.; MARTIN NETO, L. |
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Afiliação: |
JOANA DIAS BRESOLIN, CNPDIA; MILENE CORSO MITSUYUKI, CNPDIA; PATRICIA PERONDI ANCHAO OLIVEIRA, CPPSE; JOSE RICARDO MACEDO PEZZOPANE, CPPSE; ALBERTO CARLOS DE CAMPOS BERNARDI, CPPSE; LADISLAU MARTIN NETO, CNPDIA. |
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Título: |
The long-term effects of intensive grazing and silvopastoral systems on soil physicochemical properties, enzymatic activity, and microbial biomass. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Catena, v. 219, a106619, 2022. |
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Páginas: |
1 - 11 |
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ISSN: |
0341-8162 |
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DOI: |
https://doi.org/10.1016/j.catena.2022.106619 |
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Idioma: |
Inglês |
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Conteúdo: |
Brazil is the largest exporter and the second-largest beef producer in the world. The country?s biggest challenge
has been to increase the production capacity of soils in an environmentally sustainable way. In this context,
agricultural practices that preserve the environment have demonstrated high productivity and sustainability by
emphasizing intensive grazing management and silvopastoral systems. In this study, the effects of the conversion
of a native forest (FO) into different pasture-based cattle production systems were assessed in long-term field
experiments using microbiological and physicochemical measurements. Five pasture systems were evaluated: i)
irrigated high stocking rate pasture (IHS); ii) rainfed high stocking rate pasture (RHS); iii) rainfed moderate
stocking rate pasture (RMS); iv) silvopastoral system with moderate stocking rate (SPS); and v) degraded pasture
(DP), the latter used as a reference for conventional pasture management, extensively used by farmers. Soil
samples (0?10 cm) were analyzed for bulk density (BD), total carbon content (TC), soil organic matter humification index (HLIFS), activities of soil enzymes β-glucosidase (BG) and arylsulfatase (ARYL), microbial biomass
carbon (MBC), and basal respiration (BR). The results showed that all managed pastures presented higher soil
carbon content than DP (16.2 ± 1.7 g kg− 1
), especially the RMS system, which presented the highest carbon
content (32.9 ± 0.9 g kg− 1
). Activities of BG and ARYL were more sensitive to detecting management changes
than MBC and BR. Increased activities of BG and ARYL were observed in the RMS system, possibly due to the
higher amount of biomass input, while this effect was less expressive in the other management systems. The
results indicated that soil enzymatic activities are sensitive to land use and management and could be used as soil
quality indicators in pasture-based beef cattle production for different systems in tropical soils. MenosBrazil is the largest exporter and the second-largest beef producer in the world. The country?s biggest challenge
has been to increase the production capacity of soils in an environmentally sustainable way. In this context,
agricultural practices that preserve the environment have demonstrated high productivity and sustainability by
emphasizing intensive grazing management and silvopastoral systems. In this study, the effects of the conversion
of a native forest (FO) into different pasture-based cattle production systems were assessed in long-term field
experiments using microbiological and physicochemical measurements. Five pasture systems were evaluated: i)
irrigated high stocking rate pasture (IHS); ii) rainfed high stocking rate pasture (RHS); iii) rainfed moderate
stocking rate pasture (RMS); iv) silvopastoral system with moderate stocking rate (SPS); and v) degraded pasture
(DP), the latter used as a reference for conventional pasture management, extensively used by farmers. Soil
samples (0?10 cm) were analyzed for bulk density (BD), total carbon content (TC), soil organic matter humification index (HLIFS), activities of soil enzymes β-glucosidase (BG) and arylsulfatase (ARYL), microbial biomass
carbon (MBC), and basal respiration (BR). The results showed that all managed pastures presented higher soil
carbon content than DP (16.2 ± 1.7 g kg− 1
), especially the RMS system, which presented the highest carbon
content (32.9 ± 0.9 g kg− 1
). A... Mostrar Tudo |
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Palavras-Chave: |
Enzymatic activity; ILPF; Integrated livestock forest systems; Ntegrated livestock-forest systems; Production systems. |
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Thesaurus NAL: |
Pastures; Soil organic matter; Tropical soils. |
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Categoria do assunto: |
--
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 03103naa a2200349 a 4500
001 2149113
005 2022-12-01
008 2022 bl uuuu u00u1 u #d
022 $a0341-8162
024 7 $ahttps://doi.org/10.1016/j.catena.2022.106619$2DOI
100 1 $aSANTOS, J. V. dos
245 $aThe long-term effects of intensive grazing and silvopastoral systems on soil physicochemical properties, enzymatic activity, and microbial biomass.$h[electronic resource]
260 $c2022
300 $a1 - 11
520 $aBrazil is the largest exporter and the second-largest beef producer in the world. The country?s biggest challenge has been to increase the production capacity of soils in an environmentally sustainable way. In this context, agricultural practices that preserve the environment have demonstrated high productivity and sustainability by emphasizing intensive grazing management and silvopastoral systems. In this study, the effects of the conversion of a native forest (FO) into different pasture-based cattle production systems were assessed in long-term field experiments using microbiological and physicochemical measurements. Five pasture systems were evaluated: i) irrigated high stocking rate pasture (IHS); ii) rainfed high stocking rate pasture (RHS); iii) rainfed moderate stocking rate pasture (RMS); iv) silvopastoral system with moderate stocking rate (SPS); and v) degraded pasture (DP), the latter used as a reference for conventional pasture management, extensively used by farmers. Soil samples (0?10 cm) were analyzed for bulk density (BD), total carbon content (TC), soil organic matter humification index (HLIFS), activities of soil enzymes β-glucosidase (BG) and arylsulfatase (ARYL), microbial biomass carbon (MBC), and basal respiration (BR). The results showed that all managed pastures presented higher soil carbon content than DP (16.2 ± 1.7 g kg− 1 ), especially the RMS system, which presented the highest carbon content (32.9 ± 0.9 g kg− 1 ). Activities of BG and ARYL were more sensitive to detecting management changes than MBC and BR. Increased activities of BG and ARYL were observed in the RMS system, possibly due to the higher amount of biomass input, while this effect was less expressive in the other management systems. The results indicated that soil enzymatic activities are sensitive to land use and management and could be used as soil quality indicators in pasture-based beef cattle production for different systems in tropical soils.
650 $aPastures
650 $aSoil organic matter
650 $aTropical soils
653 $aEnzymatic activity
653 $aILPF
653 $aIntegrated livestock forest systems
653 $aNtegrated livestock-forest systems
653 $aProduction systems
700 1 $aBENTO, L. R.
700 1 $aBRESOLIN, J. D.
700 1 $aFOSCHINI, M. M.
700 1 $aOLIVEIRA, P. P. A.
700 1 $aPEZZOPANE, J. R. M.
700 1 $aBERNARDI, A. C. de C.
700 1 $aMENDES, I. C.
700 1 $aMARTIN NETO, L.
773 $tCatena$gv. 219, a106619, 2022.
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