By Amy Pendegraft
Articles contained within this post:
- Rotational nitrogen-use efficiency evaluations
- Remote Sensing: Estimating Nitrogen Uptake from Space
- No Laughing Matter: Monitoring N2O Emissions from Agriculture
Improving nitrogen use efficiency is an important strategy in increasing agricultural sustainability, but efficiency rates can be very difficult to measure. Dr. Tai McClellan Maaz presents the results of a multi-year study on the residual effects of nitrogen fertilizer in seasons following application. She compares the results of rotational estimates vs. single season estimates and discusses the importance of monitoring soil organic nitrogen.
Tai is a post-doctoral researcher in Crop and Soil Sciences at Washington State University.
Interested in the application of exciting developments in remote sensing technologies to agriculture? Dr. Troy Magney presents on the use of satellite imagery to measure levels of nitrogen uptake by crops across a heterogeneous landscape. Remote sensing has the potential to provide detailed information about crop health and development that can assist growers in management decisions.
Troy Magney was a PhD Student at the University of Idaho.
Nitrous oxide (laughing gas) has well known medical effects, but did you know that it is also a greenhouse gas with 300 times the warming potential of carbon dioxide over a 100-year period? Sarah Waldo has worked on the first long-term, continuous project to measure agricultural emissions of nitrous oxide in the inland Pacific Northwest. Her team uses both chambers and flux towers to collect and compare results from no-till and normal tillage sites.
Learn more about Flux towers.
Sarah Waldo recently graduated with her PhD Student at Washington State University.
This material is based upon work that is supported by the National Institute of Food and Agriculture, U.S. Department of Agriculture, under award number 2011-68002-30191