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Researchers from Cropping Systems and Water Quality Research presented at the 2024 Digital Agriculture Symposium hosted by the University of Missouri - Digital Agriculture Research and Extension Center
Schreiner-Mcgraw, A.P., Baffaut, C. 2023. Quantifying links between topsoil depth, plant water use, and yield in a rainfed maize field in the U. S. Midwest. Agricultural Water Management. 290. Article 108569.
- Increased transpiration is related to increased plant biomass and grain yield.
- Sites with deeper topsoil have higher plant available water for a growing season.
- Higher soil water content is correlated with higher plant transpiration.
Schreiner-Mcgraw, A.P., Baker, J.M., Wood, J.D., Abraha, M., Chen, J., Griffis, T.J., Robertson, G.P. 2024. Surface resistance controls differences in evapotranspiration between croplands and prairies in U.S. Corn Belt sites. Water Resources Research. 60(4). Article e2023WR035819.
- Differences in evapotranspiration between croplands and prairies was quantified by a mechanistic Two Resistance Method
- Bowen ratio during springtime is higher in prairies than croplands
- Surface resistance is the primary factor causing springtime evapotranspiration differences between croplands and prairies
Schreiner-Mcgraw, A.P., Ransom, C.J., Veum, K.S., Wood, J.D., Sudduth, K.A., Abendroth,L.J. 2023. Quantifying the impact of climate smart agricultural practices on soil carbon storage relative to conventional management. Agricultural and Forest Meteorology. 344. Article 109812.
- Climate smart practices increase soil carbon in a Corn Belt agricultural field.
- Eddy covariance and soil sample analyses both detected increases in SOC.
- Net Ecosystem Carbon Balance showed the most increase during the non-cash crop season.
AgLab featured article on precision agriculture
Megan Metz - 2023 LTAR Support Scientist Award for "outstanding commitment to leading and supporting network data management activities focused on making Eddy Co-variance data findable, accessible, interoperable and re-usable for use by LTAR scientists and beyond."
Agricultural management accentuates interannual variability in water fluxes but not carbon fluxes in the U.S. Corn Belt. Schreiner-Mcgraw, A.P., Wood, J.D., Metz, M.E., Sadler, E.J., Sudduth, K.A. 2023. Agricultural and Forest Meteorology. 333. Article 109420.
Key points:
- A no-till cropping system has higher carbon fluxes than a conventional field.
- A native prairie has higher evapotranspiration than the agricultural sites.
- The conventional field is most sensitive to changes in environmental conditions.
- Inter-annual variability in evaporation is accentuated by agricultural management.
January 2023 - Dr. Kristen S. Veum selected as American Society of Agronomy President-Elect
Dr. Lori Abendroth – 2022 LTAR Early Career Award; 2022 LTAR Network Impact Award (group award); 2022 Top-Cited Article in Agronomy Journal
2022 ASA Outstanding Paper
Corn nitrogen rate recommendation tools’ performance across eight US Midwest corn belt states. Ransom, C.J., Kitchen, N.R., Camberato, J.J., Carter, P.R., Ferguson, R.B., Fernandez, F.G., Franzen, D.W., Laboski, C., Nafziger, E.D., Sawyer, J.E., Scharf, P.C., Shanahan, J.F. 2020. Agronomy Journal. 112(1):470-492.
ARS News Articles
| USDA's Agricultural Research Service Honors Scientists of the Year |
| Apr 09, 2019 |
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| ARS Honors Scientists of the Year |
| Sep 07, 2016 |
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| Precision Agriculture: Maximizing Benefits with Better Management |
| Mar 14, 2007 |
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| Web-Based System Tracks Watersheds' "Vital Signs" |
| Aug 28, 2006 |
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