Soil Net Nitrogen Mineralization and Leaching under Miscanthus × giganteus and Zea mays
CABBI Theme: Sustainability
Keywords: Biomass Analytics, Field Data
Studt, J., Heaton, E., McDaniel, M.D. June 10, 2021. “Soil Net Nitrogen Mineralization and Leaching under Miscanthus × giganteus and Zea mays.” Iowa State University. DOI: 10.25380/iastate.14695989.v1.
Research objectives were to compare whether miscanthus (Miscanthus × giganteus Greef et Deu.) would leach less nitrogen (N) than continue maize (Zea mays L.) and how soil net N mineralization (Nmin) may explain observed leaching. The experiment included three factors: 1) cropping system (maize, juvenile miscanthus = 1-2 y old, mature miscanthus = 3-4 y old); 2) N fertilization (0 and 224 kg N ha-1); and 3) environment (four site-years at two locations in Iowa, USA that differed in climate and soil fertility). During the 2017 and 2018 growing seasons a variety of soil measurements, including inorganic soil N (ammonium + nitrate), in situ Nmin, and N leaching were taken to better understand the differences in N cycling dynamics associated with each system.
Studt, J.E., McDaniel, M.D., Tejera, M.D., VanLoocke, A., Howe, A., Heaton, E.A. June 26, 2021. “Soil Net Nitrogen Mineralization and Leaching under Miscanthus x giganteus and Zea mays.” GCB Bioenergy. DOI: 10.1111/gcbb.12875.