Journal ArticleDOI
Maize systems under climate change in sub-Saharan Africa
Kindie Tesfaye,Sika Gbegbelegbe,Jill E. Cairns,Bekele Shiferaw,Boddupalli M. Prasanna,Kai Sonder,Kenneth J. Boote,Dan Makumbi,Richard Robertson +8 more
TLDR
In this article, the authors examined the biophysical and socioeconomic impacts of climate change on maize production and food security in sub-Saharan Africa using adapted improved maize varieties and well-calibrated and validated bioeconomic models.Abstract:
Purpose – The purpose of this study is to examine the biophysical and socioeconomic impacts of climate change on maize production and food security in sub-Saharan Africa (SSA) using adapted improved maize varieties and well-calibrated and validated bioeconomic models. Design/methodology/approach – Using the past climate (1950-2000) as a baseline, the study estimated the biophysical impacts of climate change in 2050 (2040-2069) and 2080 (2070-2099) under the A1B emission scenario and three nitrogen levels, and the socioeconomic impacts in 2050. Findings – Climate change will affect maize yields across SSA in 2050 and 2080, and the extent of the impact at a given period will vary considerably between input levels, regions and maize mega environments (MMEs). Greater relative yield reductions may occur under medium and high-input intensification than under low intensification, in Western and Southern Africa than in Eastern and Central Africa and in lowland and dry mid-altitude than in highland and wet mid-alt...read more
Citations
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Journal ArticleDOI
Translating High-Throughput Phenotyping into Genetic Gain
TL;DR: This review will provide a wide perspective on how field phenotyping is best implemented and outline how to bridge the gap between breeders and ‘phenotypers’ in an effective manner.
Journal ArticleDOI
Climate change and variability in Kenya: a review of impacts on agriculture and food security
TL;DR: In this article, the authors examined the past and future crop production and food security in Kenya under variable climate, and revealed that climate change would continue to negatively affect crop production to the already vulnerable communities in the arid and semi-arid areas.
Journal ArticleDOI
Effect of Climate Change on the Yield of Cereal Crops: A Review
TL;DR: In this article, the authors discuss the growth requirements and greenhouse gas release potential of staple cereal crops and assess the impact of climate change on their yields, and discuss potential solutions for minimizing the influence of global warming on crop productivity.
Journal ArticleDOI
Maize crop nutrient input requirements for food security in sub-Saharan Africa
H.F.M. ten Berge,R. Hijbeek,M.P. van Loon,Jairos Rurinda,Kindie Tesfaye,Shamie Zingore,Peter Craufurd,J. van Heerwaarden,F. Brentrup,J.J. Schröder,Hendrik Boogaard,H.L.E. de Groot,M.K. van Ittersum +12 more
TL;DR: In this paper, a generic and simple equilibrium model was proposed to estimate minimum input requirements of nitrogen, phosphorus and potassium for target yields in cereal crops under highly efficient management in sub-Saharan Africa.
Journal ArticleDOI
Global maize production, consumption and trade: trends and R&D implications
TL;DR: In this article , the authors reviewed maize production, consumption, and international trade to examine the changing trends in global supply and demand conditions over the past quarter century and the implications for research and development (R&D), particularly in the Global South.
References
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TL;DR: In this paper, the authors developed interpolated climate surfaces for global land areas (excluding Antarctica) at a spatial resolution of 30 arc s (often referred to as 1-km spatial resolution).
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The DSSAT cropping system model
James W. Jones,Gerrit Hoogenboom,Cheryl H. Porter,Kenneth J. Boote,William D. Batchelor,L. A. Hunt,Paul W. Wilkens,Upendra Singh,Arjan J. Gijsman,Joe T. Ritchie +9 more
TL;DR: The benefits of the new, re-designed DSSAT-CSM will provide considerable opportunities to its developers and others in the scientific community for greater cooperation in interdisciplinary research and in the application of knowledge to solve problems at field, farm, and higher levels.
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Some Comments on the Evaluation of Model Performance
TL;DR: In this article, it is suggested that the correlation between model-predicted and observed data, commonly described by Pearson's productmoment correlation coefficient, is an insufficient and often misleading measure of accuracy, and a complement of difference and summary univariate indices is presented as the nucleus of a more informative, albeit fundamentally descriptive, approach to model evaluation.
Journal ArticleDOI
Global food security under climate change
TL;DR: It is found that of the four main elements of food security, i.e., availability, stability, utilization, and access, only the first is routinely addressed in simulation studies, indicating the potential for further negative impacts beyond those currently assessed with models.
Journal ArticleDOI
Effects of climate change on global food production under SRES emissions and socio-economic scenarios
TL;DR: In this article, the impact of climate change on crop yields, production, and risk of hunger was analyzed for linked socio-economic and climate scenarios using transfer functions derived from crop model simulations with observed climate data and projected climate change scenarios.