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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
05/02/2015 |
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Data da última atualização: |
02/06/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BERHE, A. A.; MARTORANO, L. G.; GIRMA, A.; HABTU, S.; KEBEDE, H.; HADGU, K. M. |
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Afiliação: |
Araya Alemie Berhe, Mekelle University; LUCIETA GUERREIRO MARTORANO, CPATU; Atkilt Girma, Mekelle University; Solomon Habtu, Mekelle University; Haile Kebede, Buraue of Agriculture and Rural Development; Kiros Meles Hadgu, ICRAF. |
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Título: |
Comparative efficiency evaluation of different clay pots versus bucket irrigation system under swiss chard (Beta vulgaris subsp. cicla) growers condition in Northern Ethiopia. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Malaysian Journal of Medical and Biological Research, v. 1, n. 3, p. 122-127, 2014. |
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Idioma: |
Inglês |
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Conteúdo: |
Rain-fed agriculture shares the largest crop production system in Tigray region. However, due to erratic nature of rainfall, crop production is always at a risk. For this reason crop production in the arid and semi arid regions of northern Ethiopia usually requires supplemental irrigation. In an effort to assist agricultural production under smallholder farmers, the Regional Bureau of Agriculture and Natural Resources has been looking for efficient and less costly irrigation methods. Although drip irrigation technology has been well known for its higher efficiency, its adoption was too slow due to its high initial cost and inadequate technical knowhow. At the moment, in some areas of Tigray farmers have started practicing locally made low cost clay pot irrigation technology. However, the water use efficiency and its economic viability under smallholder farmers were not adequately understood. The objectives of this study were thus to examine the economical viability and estimate the water use efficiency of clay pot irrigation technology and to evaluate the performance of different clay pot design for irrigating Swiss chard (the most common leafy vegetable crop in this region). In this research traditional pot maker was instructed to manufacture four different clay pot designs (imperforated bar type, imperforated round shape type, perforated bar type and perforated round types) which were used for assessing performance of clay pot for irrigating swiss chard. Performance tests were carried out based on economic and biomass water use efficiencies and cost benefit ratios under two groups of farmers (with and without land). The result showed that the imperforated bar shaped clay pots were found to be suited to grow Swiss chard. The water seeps out through the micro pores of the clay pots with relatively slow leaks and long surface wetting time and large area converge around the roots of plants. Contrarly, perforated clay pots leak the water fast through the macro and micro pores and have relatively short wetting time and small area coverage. On the other hand, the difference between imperforated bar and round types were simply the shapes of the pots which is to do with the area coverage along with the rows of the Swiss chard plant. Round types were not as suitable as bar type of the same capacity for row Swiss chard crops due to their small wetting area coverage compared to a similar volume with imperforated bar shaped clay pots type. The economic and biomass water use efficiency for the imperforated bar clay pot design was higher than that of the bucket irrigation system as well as other tested clay pots. The other advantages with imperforated bar clay pots over the bucket type is that the water source is inside the soil thus evaporation is almost nil and there is also less probability of occurrence of leaf disease due to watering and ultimately improving the biomass and economical water use efficiency. However, the technology was not as profitable as the bucket irrigation technique when considering the benefit-cost ratio (BCR) due to costs incurred for purchase of clay pots. MenosRain-fed agriculture shares the largest crop production system in Tigray region. However, due to erratic nature of rainfall, crop production is always at a risk. For this reason crop production in the arid and semi arid regions of northern Ethiopia usually requires supplemental irrigation. In an effort to assist agricultural production under smallholder farmers, the Regional Bureau of Agriculture and Natural Resources has been looking for efficient and less costly irrigation methods. Although drip irrigation technology has been well known for its higher efficiency, its adoption was too slow due to its high initial cost and inadequate technical knowhow. At the moment, in some areas of Tigray farmers have started practicing locally made low cost clay pot irrigation technology. However, the water use efficiency and its economic viability under smallholder farmers were not adequately understood. The objectives of this study were thus to examine the economical viability and estimate the water use efficiency of clay pot irrigation technology and to evaluate the performance of different clay pot design for irrigating Swiss chard (the most common leafy vegetable crop in this region). In this research traditional pot maker was instructed to manufacture four different clay pot designs (imperforated bar type, imperforated round shape type, perforated bar type and perforated round types) which were used for assessing performance of clay pot for irrigating swiss chard. Performance tests ... Mostrar Tudo |
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Palavras-Chave: |
Clay pot irrigation; Climate change adaptation; Swiss chard; Uso eficiente da água. |
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Thesagro: |
Irrigação; Mudança Climática. |
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Thesaurus Nal: |
water use efficiency. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 04018naa a2200265 a 4500
001 2007858
005 2022-06-02
008 2014 bl uuuu u00u1 u #d
100 1 $aBERHE, A. A.
245 $aComparative efficiency evaluation of different clay pots versus bucket irrigation system under swiss chard (Beta vulgaris subsp. cicla) growers condition in Northern Ethiopia.$h[electronic resource]
260 $c2014
520 $aRain-fed agriculture shares the largest crop production system in Tigray region. However, due to erratic nature of rainfall, crop production is always at a risk. For this reason crop production in the arid and semi arid regions of northern Ethiopia usually requires supplemental irrigation. In an effort to assist agricultural production under smallholder farmers, the Regional Bureau of Agriculture and Natural Resources has been looking for efficient and less costly irrigation methods. Although drip irrigation technology has been well known for its higher efficiency, its adoption was too slow due to its high initial cost and inadequate technical knowhow. At the moment, in some areas of Tigray farmers have started practicing locally made low cost clay pot irrigation technology. However, the water use efficiency and its economic viability under smallholder farmers were not adequately understood. The objectives of this study were thus to examine the economical viability and estimate the water use efficiency of clay pot irrigation technology and to evaluate the performance of different clay pot design for irrigating Swiss chard (the most common leafy vegetable crop in this region). In this research traditional pot maker was instructed to manufacture four different clay pot designs (imperforated bar type, imperforated round shape type, perforated bar type and perforated round types) which were used for assessing performance of clay pot for irrigating swiss chard. Performance tests were carried out based on economic and biomass water use efficiencies and cost benefit ratios under two groups of farmers (with and without land). The result showed that the imperforated bar shaped clay pots were found to be suited to grow Swiss chard. The water seeps out through the micro pores of the clay pots with relatively slow leaks and long surface wetting time and large area converge around the roots of plants. Contrarly, perforated clay pots leak the water fast through the macro and micro pores and have relatively short wetting time and small area coverage. On the other hand, the difference between imperforated bar and round types were simply the shapes of the pots which is to do with the area coverage along with the rows of the Swiss chard plant. Round types were not as suitable as bar type of the same capacity for row Swiss chard crops due to their small wetting area coverage compared to a similar volume with imperforated bar shaped clay pots type. The economic and biomass water use efficiency for the imperforated bar clay pot design was higher than that of the bucket irrigation system as well as other tested clay pots. The other advantages with imperforated bar clay pots over the bucket type is that the water source is inside the soil thus evaporation is almost nil and there is also less probability of occurrence of leaf disease due to watering and ultimately improving the biomass and economical water use efficiency. However, the technology was not as profitable as the bucket irrigation technique when considering the benefit-cost ratio (BCR) due to costs incurred for purchase of clay pots.
650 $awater use efficiency
650 $aIrrigação
650 $aMudança Climática
653 $aClay pot irrigation
653 $aClimate change adaptation
653 $aSwiss chard
653 $aUso eficiente da água
700 1 $aMARTORANO, L. G.
700 1 $aGIRMA, A.
700 1 $aHABTU, S.
700 1 $aKEBEDE, H.
700 1 $aHADGU, K. M.
773 $tMalaysian Journal of Medical and Biological Research$gv. 1, n. 3, p. 122-127, 2014.
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Embrapa Amazônia Oriental (CPATU) |
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| 11. |  | TATSCH, J. D.; ROCHA, H. R.; CABRAL, O. M. R.; FREITAS, H. C.; LLOPART, M.; ACOSTA, R.; LIGO, M. A. V. Avaliação do método de Multiple Imputation no preenchimento de falhas de fluxos de energia sobre uma área de cana-de-açúcar. In: BRAZILIAN MICROMETEOROLOGY WORKSHOP, 5., 2007, Santa Maria. Abstracts... Santa Maria: Universidade Federal de Santa Maria, 2007. CD-ROM.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
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| 12. | | CUADRA, S. V.; ROCHA, R. P. da; LLOPART, M. P.; VICTORIA, D. de C.; ALMEIDA, I. R. de; FARIAS, J. R. B. Impactos da correção de viés sobre projeções de mudanças climáticas aplicadas a simulações de rendimento de culturas. Agrometeoros, v. 26, n. 2, p. 287-298, dez. 2018.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: C - 0 |
| Biblioteca(s): Embrapa Agricultura Digital; Embrapa Soja. |
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| 13. | | BETTOLLI, M. L.; SOLMAN, S. A.; ROCHA, R. P. da; LLOPART, M.; GUTIERREZ, J. M.; FERNÁNDEZ, J.; OLMO, M. E.; LAVIN GULLON, A.; CHOU, S. C.; RODRIGUES, D. C.; COPPOLA, E.; HUARTE, R. B.; BARREIRO, M.; BLÁZQUEZ, J.; DOYLE, M.; FEIJOÓ, M.; HUTH, R.; MACHADO, L.; CUADRA, S. V. The CORDEX Flagship Pilot Study in southeastern South America: a comparative study of statistical and dynamical downscaling models in simulating daily extreme precipitation events. Climate Dynamics, v. 56, n. 5-6, p. 1589-1608, Mar. 2021.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Agricultura Digital. |
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