Abstract
Dryland Sorghum Nitrogen Management: Implications for Utilization as Ethanol Feedstock
Highlights
A common dryland cropping system in western Kansas is a wheat-grain sorghumfallow rotation
Results indicate that the greatest flux of N2O occurred within the first 14 days after fertilization when plant uptake was minimal and soil moisture was elevated
The timing and amount of rainfall was critical with respect to N2O flux
Summary
A study was initiated in 2018 to collect preliminary data to quantify nitrous oxide (N2O) emissions from dryland grain sorghum in western Kansas. Results indicate that the greatest flux of N2O occurred within the first 14 days after fertilization when plant uptake was minimal and soil moisture was elevated. During this time period, the timing and amount of rainfall was critical with respect to N2O flux. The cumulative emissions factor for fertilizerderived N2O estimated for Colby (~0.3%) is well below the Intergovernmental Panel on Climate Change (IPCC) default estimate of 1.0%. These preliminary factors are very promising for documenting the sustainability of dryland grain sorghum as biofuel feedstock
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
