Climate adaptation imperatives: untapped global maize yield opportunities. Gustafson, D., Jones, J., W., Porter, C., H., Hyman, G., Edgerton, M., D., Gocken, T., Shryock, J., Doane, M., Budreski, K., Stone, C., Healy, D., & Ramsey, N. International Journal of Agricultural Sustainability, 12(4):471-486, Taylor & Francis, 1, 2014. Paper abstract bibtex Climate change represents an unavoidable and growing challenge to food security, imposing new adaptation imperatives on all farmers. Maize is arguably the world's most productive grain crop, as measured by grain yield. However, maize yields vary dramatically due to many factors, including soils, climate, pests, disease, agronomic practices, and seed quality. The difference between observed yields and those achievable by optimized crop production methods is called the yield gap. In this work we quantified the current yield gap for 44 countries through the use of a large private-sector data set recently made available to the crop modelling community. The yield gap was quantified for three groups of countries, categorized by level of intensification. Observed yield gaps for high, medium, and low levels of intensification are 23%, 46%, and 68%, respectively. If all maize production countries were able to shrink their yield gap to 16.5% (as in the USA) an additional 335 million metric tons (MMT) of maize grain...
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title = {Climate adaptation imperatives: untapped global maize yield opportunities},
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abstract = {Climate change represents an unavoidable and growing challenge to food security, imposing new adaptation imperatives on all farmers. Maize is arguably the world's most productive grain crop, as measured by grain yield. However, maize yields vary dramatically due to many factors, including soils, climate, pests, disease, agronomic practices, and seed quality. The difference between observed yields and those achievable by optimized crop production methods is called the yield gap. In this work we quantified the current yield gap for 44 countries through the use of a large private-sector data set recently made available to the crop modelling community. The yield gap was quantified for three groups of countries, categorized by level of intensification. Observed yield gaps for high, medium, and low levels of intensification are 23%, 46%, and 68%, respectively. If all maize production countries were able to shrink their yield gap to 16.5% (as in the USA) an additional 335 million metric tons (MMT) of maize grain...},
bibtype = {article},
author = {Gustafson, David and Jones, James W. and Porter, Cheryl H. and Hyman, Glenn and Edgerton, Michael D. and Gocken, Tom and Shryock, Jereme and Doane, Michael and Budreski, Katie and Stone, Chris and Healy, David and Ramsey, Nathan},
journal = {International Journal of Agricultural Sustainability},
number = {4}
}
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