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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
22/02/2006 |
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Data da última atualização: |
10/03/2008 |
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Autoria: |
EUCLIDES, V. P. B.; MACEDO, M. C. M.; OLIVEIRA, M. P. |
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Afiliação: |
Embrapa Gado de Corte (Campo Grande, MS). |
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Título: |
Animal production from tropical pastures renovated by subsoiling and fertilization in the cerrados of Brazil. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
In: INTERNATIONAL GRASSLAND CONGRESS, 19., 2001, São Pedro. Grassland ecosystems: an outlook into the 21st century: proceedings. Piracicaba: Sociedade Brasileira de Zootecnia: FEALQ, 2001. |
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Páginas: |
p. 841-842. (ID n. 22-30). |
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Idioma: |
Inglês |
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Notas: |
CNPGC. |
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Conteúdo: |
A grazing trial was conducted, to study the effects of fertilization on the maintenance of the productivity of four tropical grasses. The paddocks were subsoiled, and dived into halves: received one (LFI) received 400kg/ha of the same fertilizer formula 0-20-20. and the other (LF2) 800 kg/ha of the same fertilizars, in january 1995. Annually, 50 kg/ha of the N was applied. The productivity on LP2 pastures was greater than that on FL.1 pastures, averaging 520 and 410 kg of liveweight gain/ha/year. A double strategy should be followed to sustain animal production in the savanna: maintain soil P over a critical value of 3,0 mg P (Mechilich-1)/dm, and annual N appliocation. |
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Palavras-Chave: |
Bovino de corte; Brasil; Brazilian savannas; Nelore; Production. |
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Thesagro: |
Adubação; Brachiaria; Calcário; Cerrado; Ganho de Peso; Gesso; Pastagem; Produção. |
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Thesaurus Nal: |
beef cattle; Brazil; fertilizer application; gypsum; limestone; Nellore; Panicum; pastures; weight gain. |
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Categoria do assunto: |
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Marc: |
LEADER 01925naa a2200433 a 4500
001 1324093
005 2008-03-10
008 2001 bl uuuu u00u1 u #d
100 1 $aEUCLIDES, V. P. B.
245 $aAnimal production from tropical pastures renovated by subsoiling and fertilization in the cerrados of Brazil.
260 $c2001
300 $ap. 841-842. (ID n. 22-30).
500 $aCNPGC.
520 $aA grazing trial was conducted, to study the effects of fertilization on the maintenance of the productivity of four tropical grasses. The paddocks were subsoiled, and dived into halves: received one (LFI) received 400kg/ha of the same fertilizer formula 0-20-20. and the other (LF2) 800 kg/ha of the same fertilizars, in january 1995. Annually, 50 kg/ha of the N was applied. The productivity on LP2 pastures was greater than that on FL.1 pastures, averaging 520 and 410 kg of liveweight gain/ha/year. A double strategy should be followed to sustain animal production in the savanna: maintain soil P over a critical value of 3,0 mg P (Mechilich-1)/dm, and annual N appliocation.
650 $abeef cattle
650 $aBrazil
650 $afertilizer application
650 $agypsum
650 $alimestone
650 $aNellore
650 $aPanicum
650 $apastures
650 $aweight gain
650 $aAdubação
650 $aBrachiaria
650 $aCalcário
650 $aCerrado
650 $aGanho de Peso
650 $aGesso
650 $aPastagem
650 $aProdução
653 $aBovino de corte
653 $aBrasil
653 $aBrazilian savannas
653 $aNelore
653 $aProduction
700 1 $aMACEDO, M. C. M.
700 1 $aOLIVEIRA, M. P.
773 $tIn: INTERNATIONAL GRASSLAND CONGRESS, 19., 2001, São Pedro. Grassland ecosystems: an outlook into the 21st century: proceedings. Piracicaba: Sociedade Brasileira de Zootecnia: FEALQ, 2001.
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Embrapa Gado de Corte (CNPGC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
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Data corrente: |
05/08/2021 |
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Data da última atualização: |
05/08/2021 |
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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, D. L.; COELHO, E. F.; OLIVEIRA, R. A. de; FILGUEIRAS.; ALVES, M. da S.; RODRIGUES, W. P.; CAMPOSTRINI, E.; SAMPAIO, A. H. R.; REIS, J. B. R. da S.; CUNHA, F. F. da. |
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Afiliação: |
DIONEI LIMA SANTOS, IFPA; EUGENIO FERREIRA COELHO, CNPMF; RUBENS ALVES DE OLIVEIRA, UFV; ROBERTO FILGUEIRAS, UFV; MÁRCIO DA SILVA ALVES, IFBAIANO; WEVERTON PEREIRA RODRIGUES; ELIEMAR CAMPOSTRINI, UENF; ANTÔNIO HÉLDER RODRIGUES SAMPAIO, IFBAIANO; JOÃO BATISTA RIBEIRO DA SILVA REIS; FERNANDO FRANÇA DA CUNHA, UFV. |
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Título: |
Impact of soil water regimes and partial root?zone drying in field?grown papaya in semi?arid conditions. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Scientific Reports, v.11, n.10638, 2021. |
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Idioma: |
Inglês |
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Conteúdo: |
This study aimed to evaluate in the papaya Tainung genotype, the effects of partial root-zone drying (PRD) technique on soil water regimes by using different frequencies of shifting irrigation-side of plant row and the effects of PRD technique on (1) crop agronomic performance, (2) titratable fruit acidity (TA), (3) total soluble solids (TSS), and TSS/TA ratio. Also, we analyze the spatial dynamic of papaya condition using normalized difference vegetation index (NDVI) from different satellite images. The study was conducted in the semi-arid region of Bahia (BA) and Minas Gerais (MG), Brazil. The combination of 100% (Full irrigation?FU), 50%, and 35% in the irrigation depth (WID) and frequencies of shifting plant-row side irrigation of 0 (Fixed Irrigation?FX), 7, 14, and 21 days were applied. Nine treatments were studied in BA and five in MG. The water available in the soil was reduced to 44% for frequencies of shifting plant-row side irrigation of 7 days, 50% for 14 days, and 85% for 21 days, compared to the soil water availability at field capacity. Partial water deficit in the soil through the PRD technique did not significantly reduce the total root length, effective root depth, and root effective horizontal distance of the papaya Tainung genotype. However, PRD treatments showed leaf abscission, which resulted in reduced leaf area and NDVI values, especially in the MG experiment. Papaya yield and fruit quality were not affected. However, except for PRD 21 35%, irrigation water depth reduced to 50 and 35% under PRD increased crop water productivity (CWP) in papaya plants. Thus, the PRD technique may save 35% of WID using the alternation of lateral shift irrigation of crop row every 7 days under water scarcity in semi-arid regions. The NDVI index was important to compare the papaya canopy vigor between the experimental areas studied. We also confirmed the potential of NDVI to monitor the vigor of papaya canopy, since we could notice the sensibility of NDVI to identify water stress in papaya in higher vapor pressure deficit (VPD) conditions occurred in October 2016 and January 2017 in Bom Jesus da Lapa-BA. Therefore, the PRD strategy can be a useful tool to save water in papaya cultivation under semi-arid conditions. MenosThis study aimed to evaluate in the papaya Tainung genotype, the effects of partial root-zone drying (PRD) technique on soil water regimes by using different frequencies of shifting irrigation-side of plant row and the effects of PRD technique on (1) crop agronomic performance, (2) titratable fruit acidity (TA), (3) total soluble solids (TSS), and TSS/TA ratio. Also, we analyze the spatial dynamic of papaya condition using normalized difference vegetation index (NDVI) from different satellite images. The study was conducted in the semi-arid region of Bahia (BA) and Minas Gerais (MG), Brazil. The combination of 100% (Full irrigation?FU), 50%, and 35% in the irrigation depth (WID) and frequencies of shifting plant-row side irrigation of 0 (Fixed Irrigation?FX), 7, 14, and 21 days were applied. Nine treatments were studied in BA and five in MG. The water available in the soil was reduced to 44% for frequencies of shifting plant-row side irrigation of 7 days, 50% for 14 days, and 85% for 21 days, compared to the soil water availability at field capacity. Partial water deficit in the soil through the PRD technique did not significantly reduce the total root length, effective root depth, and root effective horizontal distance of the papaya Tainung genotype. However, PRD treatments showed leaf abscission, which resulted in reduced leaf area and NDVI values, especially in the MG experiment. Papaya yield and fruit quality were not affected. However, except for PRD 21 35%, irrigation ... Mostrar Tudo |
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Thesagro: |
Irrigação; Mamão; Solo. |
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Thesaurus NAL: |
Irrigation; Water. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03061naa a2200289 a 4500
001 2133253
005 2021-08-05
008 2021 bl uuuu u00u1 u #d
100 1 $aSANTOS, D. L.
245 $aImpact of soil water regimes and partial root?zone drying in field?grown papaya in semi?arid conditions.$h[electronic resource]
260 $c2021
520 $aThis study aimed to evaluate in the papaya Tainung genotype, the effects of partial root-zone drying (PRD) technique on soil water regimes by using different frequencies of shifting irrigation-side of plant row and the effects of PRD technique on (1) crop agronomic performance, (2) titratable fruit acidity (TA), (3) total soluble solids (TSS), and TSS/TA ratio. Also, we analyze the spatial dynamic of papaya condition using normalized difference vegetation index (NDVI) from different satellite images. The study was conducted in the semi-arid region of Bahia (BA) and Minas Gerais (MG), Brazil. The combination of 100% (Full irrigation?FU), 50%, and 35% in the irrigation depth (WID) and frequencies of shifting plant-row side irrigation of 0 (Fixed Irrigation?FX), 7, 14, and 21 days were applied. Nine treatments were studied in BA and five in MG. The water available in the soil was reduced to 44% for frequencies of shifting plant-row side irrigation of 7 days, 50% for 14 days, and 85% for 21 days, compared to the soil water availability at field capacity. Partial water deficit in the soil through the PRD technique did not significantly reduce the total root length, effective root depth, and root effective horizontal distance of the papaya Tainung genotype. However, PRD treatments showed leaf abscission, which resulted in reduced leaf area and NDVI values, especially in the MG experiment. Papaya yield and fruit quality were not affected. However, except for PRD 21 35%, irrigation water depth reduced to 50 and 35% under PRD increased crop water productivity (CWP) in papaya plants. Thus, the PRD technique may save 35% of WID using the alternation of lateral shift irrigation of crop row every 7 days under water scarcity in semi-arid regions. The NDVI index was important to compare the papaya canopy vigor between the experimental areas studied. We also confirmed the potential of NDVI to monitor the vigor of papaya canopy, since we could notice the sensibility of NDVI to identify water stress in papaya in higher vapor pressure deficit (VPD) conditions occurred in October 2016 and January 2017 in Bom Jesus da Lapa-BA. Therefore, the PRD strategy can be a useful tool to save water in papaya cultivation under semi-arid conditions.
650 $aIrrigation
650 $aWater
650 $aIrrigação
650 $aMamão
650 $aSolo
700 1 $aCOELHO, E. F.
700 1 $aOLIVEIRA, R. A. de
700 1 $aFILGUEIRAS.
700 1 $aALVES, M. da S.
700 1 $aRODRIGUES, W. P.
700 1 $aCAMPOSTRINI, E.
700 1 $aSAMPAIO, A. H. R.
700 1 $aREIS, J. B. R. da S.
700 1 $aCUNHA, F. F. da
773 $tScientific Reports$gv.11, n.10638, 2021.
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Embrapa Mandioca e Fruticultura (CNPMF) |
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