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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
01/02/2019 |
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Data da última atualização: |
01/12/2023 |
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Autoria: |
ROUSTA, M. J.; GOLCHIN, A. |
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Título: |
Effects of organic matter and mineral compounds on some chemical properties and biological activity of a sodic soil in Iran. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE ON THE DEVELOPMENT OF DRYLANDS, 7., 2003, Tehran, Iran. Sustainable development and management of drylands in the twenty-first century; proceedings. Aleppo, Syria: ICARDA, c2005. p. 183-186. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: In a field experiment in northwest Iran, changes in pH., sodium adsorption ratio (SAR), electrical conductivity (EC.) and microbial activity of a sodic soil were studied following the application of organic matter, mineral compounds and combinations of these materials. The treatments included wheat straw and manure applied at rates of 10, 20 and of 40 tIha, sulfuric acid and gypsum (equivalent to gypsum requirement, GR), cement @ 5 tIha, and a combination of wheat straw and manure at a rate of 20 tIha mixed with gypsum (equivalent to GR) or 5 tIha cement. When studied one and four months after application of the treatments, both sulfuric acid and gypsum significantly decreased soil pH; from 8.37 to 7.87 after one month and to 7.60 after four months. Application of gypsum decreased pH to 7.93 after one month and this remained constant thereafter. Straw (except 40 tIha treatment), manure, and cement had no significant effects on soil pH, but application of straw and manure with gypsum, significantly lowered it after four months. Addition of sulfuric acid to irrigation water, gypsum, and organic matter with gypsum increased EC., significantly. The highest decrease in SAR was obtained four months after the application of gypsum and sulfuric acid. Addition of gypsum to soil was _ more effective in decreasing the SAR than gypsum mixed with organic matter. Following the application of different levels of straw, microbial activity (measured as evolved C02) increased significantly. The highest increases were for 40 tIha of straw, which raised the activity over 3.5 times as compared with the control. This treatment increased evolved C02 from 46.4 in control to 166.8 mg m-2 hr-I. Different levels of manure also increased microbial activity, but the effects were much lower. Based on these results, it may be concluded that application of fresh plant residues, Which have higher carbon content than manure, is more effective for increasing microbial activity of sodic soils. Further more, addition of gypsum to organic matter decreased the rate of carbon mineralization probably due to increasing EC of soil solution. It may be concluded that for the maintenance of organic matter in sodic soils, these materials should be applied in mixture with gypsum. MenosAbstract: In a field experiment in northwest Iran, changes in pH., sodium adsorption ratio (SAR), electrical conductivity (EC.) and microbial activity of a sodic soil were studied following the application of organic matter, mineral compounds and combinations of these materials. The treatments included wheat straw and manure applied at rates of 10, 20 and of 40 tIha, sulfuric acid and gypsum (equivalent to gypsum requirement, GR), cement @ 5 tIha, and a combination of wheat straw and manure at a rate of 20 tIha mixed with gypsum (equivalent to GR) or 5 tIha cement. When studied one and four months after application of the treatments, both sulfuric acid and gypsum significantly decreased soil pH; from 8.37 to 7.87 after one month and to 7.60 after four months. Application of gypsum decreased pH to 7.93 after one month and this remained constant thereafter. Straw (except 40 tIha treatment), manure, and cement had no significant effects on soil pH, but application of straw and manure with gypsum, significantly lowered it after four months. Addition of sulfuric acid to irrigation water, gypsum, and organic matter with gypsum increased EC., significantly. The highest decrease in SAR was obtained four months after the application of gypsum and sulfuric acid. Addition of gypsum to soil was _ more effective in decreasing the SAR than gypsum mixed with organic matter. Following the application of different levels of straw, microbial activity (measured as evolved C02) increased signif... Mostrar Tudo |
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Thesaurus Nal: |
Iran; Sodic soils; Soil chemical properties; Soil organic matter. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02988nam a2200169 a 4500
001 2105369
005 2023-12-01
008 2005 bl uuuu u00u1 u #d
100 1 $aROUSTA, M. J.
245 $aEffects of organic matter and mineral compounds on some chemical properties and biological activity of a sodic soil in Iran.
260 $aIn: INTERNATIONAL CONFERENCE ON THE DEVELOPMENT OF DRYLANDS, 7., 2003, Tehran, Iran. Sustainable development and management of drylands in the twenty-first century; proceedings. Aleppo, Syria: ICARDA, c2005. p. 183-186.$c2005
520 $aAbstract: In a field experiment in northwest Iran, changes in pH., sodium adsorption ratio (SAR), electrical conductivity (EC.) and microbial activity of a sodic soil were studied following the application of organic matter, mineral compounds and combinations of these materials. The treatments included wheat straw and manure applied at rates of 10, 20 and of 40 tIha, sulfuric acid and gypsum (equivalent to gypsum requirement, GR), cement @ 5 tIha, and a combination of wheat straw and manure at a rate of 20 tIha mixed with gypsum (equivalent to GR) or 5 tIha cement. When studied one and four months after application of the treatments, both sulfuric acid and gypsum significantly decreased soil pH; from 8.37 to 7.87 after one month and to 7.60 after four months. Application of gypsum decreased pH to 7.93 after one month and this remained constant thereafter. Straw (except 40 tIha treatment), manure, and cement had no significant effects on soil pH, but application of straw and manure with gypsum, significantly lowered it after four months. Addition of sulfuric acid to irrigation water, gypsum, and organic matter with gypsum increased EC., significantly. The highest decrease in SAR was obtained four months after the application of gypsum and sulfuric acid. Addition of gypsum to soil was _ more effective in decreasing the SAR than gypsum mixed with organic matter. Following the application of different levels of straw, microbial activity (measured as evolved C02) increased significantly. The highest increases were for 40 tIha of straw, which raised the activity over 3.5 times as compared with the control. This treatment increased evolved C02 from 46.4 in control to 166.8 mg m-2 hr-I. Different levels of manure also increased microbial activity, but the effects were much lower. Based on these results, it may be concluded that application of fresh plant residues, Which have higher carbon content than manure, is more effective for increasing microbial activity of sodic soils. Further more, addition of gypsum to organic matter decreased the rate of carbon mineralization probably due to increasing EC of soil solution. It may be concluded that for the maintenance of organic matter in sodic soils, these materials should be applied in mixture with gypsum.
650 $aIran
650 $aSodic soils
650 $aSoil chemical properties
650 $aSoil organic matter
700 1 $aGOLCHIN, A.
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Embrapa Caprinos e Ovinos (CNPC) |
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| Registros recuperados : 3 | |
| 1. |  | NASCIMENTO, R. P. DO; RIZZATO, J. S.; POLEZI, G.; MOYA, A. M. T. M.; SILVA, M. F.; FRANCHI JUNIOR, G. C.; BORGUINI, R. G.; SANTIAGO, M. C. P. de A.; PAIOTTI, A. P. R.; PERREIRA, J. A.; MARTINEZ, C. A. R.; MARÓSTICA JUNIOR, M. R. Dietary supplementation with Brazilian jaboticaba-sabará fruit (Myrciaria jaboticaba (Vell.) O. Berg) ameliorates colitis-driven colorectal cancer in mice. Journal of Crohn's and Colitis, v. 17, suppl. 1, 2023, p. i186-i188. Edicão dos abstracts do XVIII CONGRESS OF EUROPEAN CROHN'S AND COLITIS ORGANISATION ECCO, Copenhagen, 2023. Ref. P016.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 2. | | NASCIMENTO, R. P.; RIZZATO, J. S.; POLEZI, G.; MOYA, A. M. T. M.; SILVA, M. F.; MACHADO, A. P. F.; FRANCHI, G.; BORGUINI, R. G.; SANTIAGO, M. C. P. de A.; PAIOTTI, A. P. R.; PEREIRA, J. A.; MARTINEZ, C. A. R.; MARÓSTICA JUNIOR, M. R. Jaboticaba (Myrciaria Jaboticaba) peel, a rich source of cyanidin-3-o-glucoside, prevents colorectal cancer in mice by reducing proinflammatory markers. In: INTERNATIONAL CONGRESS ON BIOACTIVE COMPOUNDS, 2.; INTERNATIONAL WORKSHOP ON BIOACTIVE COMPOUNDS, 3., 2022, Campinas. Personal nutrition, ageing and food science: proceedings. Campinas: Unicamp, 2022. 2 p. 153593.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 3. | | NASCIMENTO, R. DE P. DO; RIZZATO, J. S.; POLEZI, G.; MOYA, A. M. T. M.; SILVA, M. F.; MACHADO, A. P. DA F.; FRANCHI JUNIOR, G. C.; BORGUINI, R. G.; SANTIAGO, M. C. P. de A.; PAIOTTI, A. P. R.; PEREIRA, J. A.; MARTINEZ, C. A. R.; MAROSTICA JUNIOR, M. R. Freeze-dried jaboticaba (Myrciaria jaboticaba) peel powder, a rich source of anthocyanins and phenolic acids, mitigates inflammation-driven colorectal cancer in mice. Food Bioscience, v, 53, e 102578, 2023.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| Registros recuperados : 3 | |
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