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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
25/05/1999 |
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Data da última atualização: |
11/05/2017 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
SCHROTH, G.; BARROS, E.; RODRIGUES, M. R. L.; LEHMANN, J. |
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Afiliação: |
University of Hamburg; INPA; Embrapa Amazonia Ocidental; University of Bayreuth.; MARIA DO ROSARIO LOBATO RODRIGUES, CPAA. |
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Título: |
Plant-soil interactions in muti-strata agroforestry systems with perennial crops. |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
In: INTERNATIONAL SYMPOSIUM MULTI-STRATA AGROFORESTRY SYSTEMS WITH PERENNIAL CROPS, 1999, Turrialba. Multy-strata agroforestry systems with perennial crops: proceedings. Turrialba: CATIE, 1999. p. 76-79. |
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Idioma: |
Inglês |
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Conteúdo: |
Study on organization of the available information on plant-soil interactions in multi-strata agroforestry with perennial crops with the objetive of developing strategies for the optimization of resource use and maximization of environmental benefits of such systems. Conclusions: plant-soil interactions in multi-strata agroforestry systems have received insufficient attention by researcher in the past, presumably because of methodological difficulties. Using the methodological principles outline above, more research efforts should be invested in these systems, taking into consideration the following issues: a) how much competition between associated plants is necessary for optimum use of soil resources? How can competition be monitored and fine-tuned within agroforestry systems with perennial crops?; b) fertilizer use eficiency of whole systems as influenced by different tree components and management practices; c) establishment methods for plantations which favour the development of the tree crops, taking into consideration the limited funds of many tropical samllholders; and d) possibilities to manage the biological agents of soil fertility, especially the quantification of the agronomic value of soil biodiversity and methods of conserving and increasing it in agroforestry systems. |
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Palavras-Chave: |
Agrofloresta; Amazonas; Brasil; Manaus; Plant soil relations. |
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Thesagro: |
Cultivo Perene; Fertilidade do Solo; Floresta Tropical Úmida; Relação Solo-Planta. |
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Thesaurus Nal: |
agroforestry; perennials; soil fertility; tropical rain forests. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/159704/1/Pag-76-79.pdf
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Marc: |
LEADER 02294nam a2200301 a 4500
001 1668207
005 2017-05-11
008 1999 bl uuuu u00u1 u #d
100 1 $aSCHROTH, G.
245 $aPlant-soil interactions in muti-strata agroforestry systems with perennial crops.
260 $aIn: INTERNATIONAL SYMPOSIUM MULTI-STRATA AGROFORESTRY SYSTEMS WITH PERENNIAL CROPS, 1999, Turrialba. Multy-strata agroforestry systems with perennial crops: proceedings. Turrialba: CATIE, 1999. p. 76-79.$c1999
520 $aStudy on organization of the available information on plant-soil interactions in multi-strata agroforestry with perennial crops with the objetive of developing strategies for the optimization of resource use and maximization of environmental benefits of such systems. Conclusions: plant-soil interactions in multi-strata agroforestry systems have received insufficient attention by researcher in the past, presumably because of methodological difficulties. Using the methodological principles outline above, more research efforts should be invested in these systems, taking into consideration the following issues: a) how much competition between associated plants is necessary for optimum use of soil resources? How can competition be monitored and fine-tuned within agroforestry systems with perennial crops?; b) fertilizer use eficiency of whole systems as influenced by different tree components and management practices; c) establishment methods for plantations which favour the development of the tree crops, taking into consideration the limited funds of many tropical samllholders; and d) possibilities to manage the biological agents of soil fertility, especially the quantification of the agronomic value of soil biodiversity and methods of conserving and increasing it in agroforestry systems.
650 $aagroforestry
650 $aperennials
650 $asoil fertility
650 $atropical rain forests
650 $aCultivo Perene
650 $aFertilidade do Solo
650 $aFloresta Tropical Úmida
650 $aRelação Solo-Planta
653 $aAgrofloresta
653 $aAmazonas
653 $aBrasil
653 $aManaus
653 $aPlant soil relations
700 1 $aBARROS, E.
700 1 $aRODRIGUES, M. R. L.
700 1 $aLEHMANN, J.
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Registro original: |
Embrapa Amazônia Ocidental (CPAA) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Solos. Para informações adicionais entre em contato com cnps.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
10/09/2021 |
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Data da última atualização: |
27/09/2021 |
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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: |
SOUZA, P. S. A. de; CERQUEIRA, A. A.; RIGO, M. M.; PAIVA, J. L. de; COUTO, R. S. P.; MERÇON, F.; PEREZ, D. V.; MARQUES, M. R. C. |
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Afiliação: |
PAULO S. A. DE SOUZA, UERJ; ALEXANDRE A. CERQUEIRA, UERJ; MICHELLE M. RIGO, UERJ; JULIETA L. DE PAIVA, UERJ; RAFAEL S. P. COUTO, UERJ; FÁBIO MERÇON, UERJ; DANIEL VIDAL PEREZ, CNPS; MONICA R. C. MARQUES, UERJ. |
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Título: |
Oilfield water treatment by electrocoagulation-reverse osmosis for agricultural use: effects on germination and early growth characteristics of sunflower. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Environmental Technology, v. 38, n. 9, p. 1151-1159, 2017. |
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DOI: |
https://doi.org/10.1080/09593330.2016.1218941 |
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Idioma: |
Inglês |
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Conteúdo: |
This study aims to evaluate the effects of oilfield water (OW), treated by a hybrid process of electrocoagulation and reverse osmosis (EC-RO), on seed germination and early growth characteristics of sunflower (Heliantus annus L.). In the EC step, tests were conducted with 28.6 A m(-2) current density and 4 min. reaction time. In the RO step, the system was operated with 1 L min(-1) constant flow and 2 MPa, 2.5 MPa and 3 MPa feed pressures. In all feed pressures, RO polymeric membranes achieved very high removals of chemical oxygen demand (up to 89%) and oils and greases (100%) from EC-treated effluent. In best feed pressure (2.5 MPa), turbidity, total dissolved salts, electrical conductivity, salinity, toxic ions and sodium adsorption ratio values attained internationally recognized standards for irrigation water. Using EC-RO (feed pressure: 2.5 MPa) treated OW, germinated sunflower seeds percentage (86 +/- 6%), speed of germination (30 +/- 2) and biomass production (49 +/- 5 mg) were statistically similar to control (distilled water) results. Vigor index average values obtained using OW treated by EC-RO (3871) were higher than that obtained by OW water treated by EC (3300). The results of this study indicate that EC-RO seems to be a promising alternative for treatment of OW aiming sunflower crops irrigation, since the use of this treated effluent did not affect adversely seed germination and seedling development, and improved seedling vigor. Furthermore, OW treatment by EC-RO reduces sodium levels into acceptable standards values avoiding soil degradation. MenosThis study aims to evaluate the effects of oilfield water (OW), treated by a hybrid process of electrocoagulation and reverse osmosis (EC-RO), on seed germination and early growth characteristics of sunflower (Heliantus annus L.). In the EC step, tests were conducted with 28.6 A m(-2) current density and 4 min. reaction time. In the RO step, the system was operated with 1 L min(-1) constant flow and 2 MPa, 2.5 MPa and 3 MPa feed pressures. In all feed pressures, RO polymeric membranes achieved very high removals of chemical oxygen demand (up to 89%) and oils and greases (100%) from EC-treated effluent. In best feed pressure (2.5 MPa), turbidity, total dissolved salts, electrical conductivity, salinity, toxic ions and sodium adsorption ratio values attained internationally recognized standards for irrigation water. Using EC-RO (feed pressure: 2.5 MPa) treated OW, germinated sunflower seeds percentage (86 +/- 6%), speed of germination (30 +/- 2) and biomass production (49 +/- 5 mg) were statistically similar to control (distilled water) results. Vigor index average values obtained using OW treated by EC-RO (3871) were higher than that obtained by OW water treated by EC (3300). The results of this study indicate that EC-RO seems to be a promising alternative for treatment of OW aiming sunflower crops irrigation, since the use of this treated effluent did not affect adversely seed germination and seedling development, and improved seedling vigor. Furthermore, OW treatment by EC-... Mostrar Tudo |
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Palavras-Chave: |
Electrocoagulation; Oilfield water. |
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Thesaurus NAL: |
Irrigation; Reverse osmosis; Sunflower seed. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02486naa a2200277 a 4500
001 2134221
005 2021-09-27
008 2017 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1080/09593330.2016.1218941$2DOI
100 1 $aSOUZA, P. S. A. de
245 $aOilfield water treatment by electrocoagulation-reverse osmosis for agricultural use$beffects on germination and early growth characteristics of sunflower.$h[electronic resource]
260 $c2017
520 $aThis study aims to evaluate the effects of oilfield water (OW), treated by a hybrid process of electrocoagulation and reverse osmosis (EC-RO), on seed germination and early growth characteristics of sunflower (Heliantus annus L.). In the EC step, tests were conducted with 28.6 A m(-2) current density and 4 min. reaction time. In the RO step, the system was operated with 1 L min(-1) constant flow and 2 MPa, 2.5 MPa and 3 MPa feed pressures. In all feed pressures, RO polymeric membranes achieved very high removals of chemical oxygen demand (up to 89%) and oils and greases (100%) from EC-treated effluent. In best feed pressure (2.5 MPa), turbidity, total dissolved salts, electrical conductivity, salinity, toxic ions and sodium adsorption ratio values attained internationally recognized standards for irrigation water. Using EC-RO (feed pressure: 2.5 MPa) treated OW, germinated sunflower seeds percentage (86 +/- 6%), speed of germination (30 +/- 2) and biomass production (49 +/- 5 mg) were statistically similar to control (distilled water) results. Vigor index average values obtained using OW treated by EC-RO (3871) were higher than that obtained by OW water treated by EC (3300). The results of this study indicate that EC-RO seems to be a promising alternative for treatment of OW aiming sunflower crops irrigation, since the use of this treated effluent did not affect adversely seed germination and seedling development, and improved seedling vigor. Furthermore, OW treatment by EC-RO reduces sodium levels into acceptable standards values avoiding soil degradation.
650 $aIrrigation
650 $aReverse osmosis
650 $aSunflower seed
653 $aElectrocoagulation
653 $aOilfield water
700 1 $aCERQUEIRA, A. A.
700 1 $aRIGO, M. M.
700 1 $aPAIVA, J. L. de
700 1 $aCOUTO, R. S. P.
700 1 $aMERÇON, F.
700 1 $aPEREZ, D. V.
700 1 $aMARQUES, M. R. C.
773 $tEnvironmental Technology$gv. 38, n. 9, p. 1151-1159, 2017.
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