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Impact of Climate Variability on Tef(Eragrostis tef) in CRV, Ethiopia: Understanding tef crop response to water in Central rift valley dryland areas, Ethiopia - Couverture souple

Hassen, Solomon Jemal; Fantaye, Kindie Tesfaye; Hordofa, Tilahun

 
9783659248078: Impact of Climate Variability on Tef(Eragrostis tef) in CRV, Ethiopia: Understanding tef crop response to water in Central rift valley dryland areas, Ethiopia
Couverture souple
ISBN 10 : 365924807X ISBN 13 : 9783659248078
Editeur : LAP LAMBERT Academic Publishing, 2012

Synopsis

Climate variability and associated risks in the Central Rift Valley (CRV) of Ethiopia put farmers under fragile situations. Although tef (Eragrostis tef) is an important cereal crop in Ethiopia, crop responses to water studies are scanty. Thus, ETc and Kc of three tef varieties determined and long-term climatic conditions of three tef growing areas viz. Alemtena, Debre Zeit and Melkassa analyzed. Seasonal ETc 289.5, 378.5 and 387mm, recorded for DZ-Cr-37, DZ-01-196 and DZ-01-354, respectively. The pooled Kc values were 0.3, 1.0, 1.2 and 0.7 for initial, development, mid-season and late-season stages, respectively. The studied sites receive rainfall from March to May and from June to September which contributes 18-32% and 66-73% to the annual rainfall, respectively. The mean length of the growing period extends from 98-114 and is highly variable. The seasonal effective rainfall failed to meet the ETc of 100 days maturity tef varieties in 40-43% of the seasons at Alemtena and Melkassa. It was concluded that analysis of long-term climate data using crop specific coefficients would help to provide better advice in designing appropriate crop management practices and to minimize risk.

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Présentation de l'éditeur

Climate variability and associated risks in the Central Rift Valley (CRV) of Ethiopia put farmers under fragile situations. Although tef (Eragrostis tef) is an important cereal crop in Ethiopia, crop responses to water studies are scanty. Thus, ETc and Kc of three tef varieties determined and long-term climatic conditions of three tef growing areas viz. Alemtena, Debre Zeit and Melkassa analyzed. Seasonal ETc 289.5, 378.5 and 387mm, recorded for DZ-Cr-37, DZ-01-196 and DZ-01-354, respectively. The pooled Kc values were 0.3, 1.0, 1.2 and 0.7 for initial, development, mid-season and late-season stages, respectively. The studied sites receive rainfall from March to May and from June to September which contributes 18-32% and 66-73% to the annual rainfall, respectively. The mean length of the growing period extends from 98-114 and is highly variable. The seasonal effective rainfall failed to meet the ETc of 100 days maturity tef varieties in 40-43% of the seasons at Alemtena and Melkassa. It was concluded that analysis of long-term climate data using crop specific coefficients would help to provide better advice in designing appropriate crop management practices and to minimize risk.

Biographie de l'auteur

Author:Solomon Jemal HassenMSC in AgronomyEmployment: EIAR/ Melkassa research center Associate researcher in Soil & water researchCo-Authors:Kindie Tesfaye (PhD)Modeling / GIS, Climate ChangeAssociate Scientist, CIMMYT.Tilahun Hordofa (PhD)Irrigation EngineerEthiopian Institute of Agricultural Research

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Éditeur
LAP LAMBERT Academic Publishing
Date d'édition
2012
Langue
anglais
ISBN 10 
365924807X
ISBN 13 
9783659248078
Reliure
Broché
Nombre de pages
124
Coordonnées du fabricant
non disponible
Personne responsable
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