TY - JOUR
T1 - Integrated assessment of crop production and resource use efficiency indicators for the U.S. Corn Belt
AU - Riccetto, Sara
AU - Davis, Adam S.
AU - Guan, Kaiyu
AU - Pittelkow, Cameron M.
N1 - Funding Information:
We would like to thank Dr. Paul Fixen from IPNI and Ryan Williams from PAQ Interactive for providing nitrogen information from the NuGIS database. We thank Dr. Yan Li at the University of Illinois for providing county-level weather data from PRISM. Sara Riccetto was supported by the Department of Crop Sciences at the University of Illinois.
Funding Information:
We would like to thank Dr. Paul Fixen from IPNI and Ryan Williams from PAQ Interactive for providing nitrogen information from the NuGIS database. We thank Dr. Yan Li at the University of Illinois for providing county-level weather data from PRISM. Sara Riccetto was supported by the Department of Crop Sciences at the University of Illinois . Appendix A
Publisher Copyright:
© 2019 The Authors
PY - 2020/3
Y1 - 2020/3
N2 - To address the global challenge of increasing the efficiency of food production in an era of climate change, integrated research frameworks based on multiple performance criteria are required to promote synergies while minimizing tradeoffs. In this study, we investigated spatial and temporal trends in yield gaps, resource use efficiencies for nitrogen and water, and yield stability at the county-level in the U.S. Corn Belt, the world's largest maize production region. Our results provide an integrated assessment of regions with higher vs. lower relative performance across indicators, while also revealing high spatial variability in relationships between yield gaps and nitrogen and water use efficiencies. Despite overall positive trends in maize production, there was evidence of increasing disparity over time, with more improvements occurring in highly productive areas. This study provides a holistic framework for balancing efforts to increase crop production, resource use efficiencies, and yield stability at the regional scale.
AB - To address the global challenge of increasing the efficiency of food production in an era of climate change, integrated research frameworks based on multiple performance criteria are required to promote synergies while minimizing tradeoffs. In this study, we investigated spatial and temporal trends in yield gaps, resource use efficiencies for nitrogen and water, and yield stability at the county-level in the U.S. Corn Belt, the world's largest maize production region. Our results provide an integrated assessment of regions with higher vs. lower relative performance across indicators, while also revealing high spatial variability in relationships between yield gaps and nitrogen and water use efficiencies. Despite overall positive trends in maize production, there was evidence of increasing disparity over time, with more improvements occurring in highly productive areas. This study provides a holistic framework for balancing efforts to increase crop production, resource use efficiencies, and yield stability at the regional scale.
KW - Maize yield gap
KW - Nitrogen partial productivity
KW - Nitrogen surplus
KW - Sustainable intensification
KW - Water productivity
KW - Yield stability
UR - http://www.scopus.com/inward/record.url?scp=85075421550&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85075421550&partnerID=8YFLogxK
U2 - 10.1016/j.gfs.2019.100339
DO - 10.1016/j.gfs.2019.100339
M3 - Article
AN - SCOPUS:85075421550
SN - 2211-9124
VL - 24
JO - Global Food Security
JF - Global Food Security
M1 - 100339
ER -