Tamer Elshater

Dr. Tamer Elshater

orcid

Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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6 July 2021 in Food Security
Verified
Journal Article
Open access
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YYYigezu Atnafe Yigezu
Yigezu Atnafe Yigezu
ZBZewdie Bishaw
Zewdie Bishaw
ANAbdoul Aziz Niane
Abdoul Aziz Niane
JAJeffrey Alwang
Jeffrey Alwang
TETamer Elshater
Tamer Elshater
MBMichael Baum
Michael Baum
Low adoption of agricultural technologies slows efforts to increase agricultural productivity and enhance rural livelihoods in developing countries. A large body of literature has sought explanations for the problem, but the focus has been mainly on micro-level farm and community factors affecting adoption. Institutional factors such as policies and market conditions, which are also important, have been largely overlooked and, few, if any, studies combine the two levels of analysis. We use Morocco as a case study to analyze institutional and farm-level factors affecting diffusion and adoption of improved wheat varieties. Results show both sides to be important. Institutional factors such as overly stringent variety testing procedures, imbalance of power among actors in the seed sector and ill-conceived variety licensing contracts limit access to seeds of more recently released varieties. Adoption of older new varieties is found to be affected by farm and farmer characteristics, but imperfect access to new seeds, sometimes associated with the failings identified above, is also a constraint. Findings signal the need for increased private engagement in seed multiplication; revised variety testing procedures; alternative royalty mechanisms; and enhanced linkages between public research and private seed companies.

1 August 2021 in Soil and Tillage Research
Verified
Journal Article
Open access
YYYigezu Atnafe Yigezu
Yigezu Atnafe Yigezu
TETamer Elshater
Tamer Elshater
MBMohamed Boughlala
Mohamed Boughlala
DMDevkota M.
Devkota M.
Rachid MrabetRachid Mrabet
Rachid Mrabet
RMRachid Moussadek
Rachid Moussadek

23 July 2021 in Agronomy
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Journal Article
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TETamer Elshater
Tamer Elshater
YYYigezu Atnafe Yigezu
Yigezu Atnafe Yigezu
Conservation agriculture (CA) involving zero tillage, crop diversification, and residue retention is considered a panacea for several interrelated problems in agricultural production. However, in the mixed crop-livestock production systems of the drylands, crop residues have great significance as sources of animal feed, posing a major challenge in the promotion of CA. While the economic benefits and the drivers of adoption of zero tillage and rotation have been well documented, the literature on the economics of residue retention (RR), especially in the drylands, is scanty. By applying the endogenous switching regression model to a case study of 2296 wheat fields in Morocco, this paper provides evidence on the socio-economic impacts of residue retention. Between 30% and 60% and above 60% of crop residues were retained respectively on 35% and 14% of wheat fields. These levels of residue retention led to 22% and 29% more yields, 25% and 32% higher gross margins and 22% and 25% more consumption of wheat, respectively. Retention of above 60% residue reduces both downside risk and variability of yield while lower levels of residue retention have mixed effects. Residue retention is economically and biophysically beneficial even for owners of livestock as the monetary value of the additional grain yield more than offsets the cost of purchasing an equivalent amount of feed from the market—all providing good economic justification for residue retention. Our findings show that economic reasons are not barriers for adoption of residue retention, but risk factors and absence of alternative feed sources might. The policy implication of our results is that there are high incentives for Morocco and other similar countries in North Africa and West Asia to invest in the development and/or import of alternative feed sources, introducing crop insurance, and raising the awareness of the economic, biophysical and environmental benefits of residue retention among farmers.

1 May 2020 in Sustainability
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Journal Article
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TETamer Elshater
Tamer Elshater
AMAmin Mugera
Amin Mugera
YYYigezu Atnafe Yigezu
Yigezu Atnafe Yigezu
The impacts of zero tillage (ZT) on soil physical, biological, and chemical properties have been fairly documented in the literature. However, there is still an information gap in the developing world in general and in integrated crop–livestock production systems in dry areas of the world in particular. Using a sample of 621 farmers in Syria, this study assessed the implications of adoption of ZT technology on productive efficiency, input-specific resource use efficiency, and production risk. A stochastic production frontier model, which explicitly and simultaneously accounts for technical inefficiency and production risk, was used to estimate total factor and input-specific technical efficiencies and the risk of obtaining lower levels of yields for each of the sampled farms. Model results show that adoption of ZT proved to be an effective risk management strategy in this dryland production system, where it led to 95% and 33.3% reductions in the risk of obtaining wheat yield levels below 1000 kg/ha and 1500 kg/ha, respectively. Overall, the results have a clear indication that using ZT leads to improvements in productive efficiency as the adoption of ZT led to 93% reduction in the risk of obtaining efficiency levels below 40%. Future research will be needed to shed light on whether coupling ZT with the other components of conservation agriculture will reverse some of these effects.

5 October 2017 in Sustainability
Verified
Journal Article
Open access
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YYYigezu Atnafe Yigezu
Yigezu Atnafe Yigezu
TETamer Elshater
Tamer Elshater
AAAden Aw-Hassan
Aden Aw-Hassan
When evaluated purely on financial grounds, most developmental interventions targeting the livestock sector exhibit a positive impact. This study also provides empirical evidence that a project which provided loans to livestock producers in Syria succeeded in increasing the annual farm income and reducing the income risk. However, these annual benefits were accompanied by a reduction in technical efficiency which, unabated, may compound over the years and compromise the livestock enterprise’s sustainability. The development lesson from these findings is that misguided interventions with well-known short-term livelihoods benefits could, in the long run, hurt the very sector which they aim to support.