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Iowa State University Offers Free Nitrogen Webinar

July 5, 2013
By: Davis Michaelsen, Pro Farmer Inputs Monitor Editor

Iowa State University assistant agronomy professor Michael Castellano will present research he has conducted on nitrogen and soil organic matter at a free webinar on July 17.isuindexlogo

“Soil organic matter, rather than fertilizer, is the largest direct source of crop nitrogen uptake – regardless of the amount of nitrogen fertilizer applied,” Castellano said. “Soil organic matter is also typically the largest sink for nitrogen fertilizer. Due to the effects of soil organic matter on nutrient availability as well as water holding capacity, soil organic matter is positively correlated with the amount and stability of crop yields.”

Castellano received his Ph.D. in soil science from The Pennsylvania State University in 2009. He has worked in agricultural systems in Arizona, Texas and Maryland. His research focuses on the use, transport and transformation of nitrogen.

To connect to the webinars, go to: https://connect.extension.iastate.edu/ilf/ at 11:30 a.m. on the morning of the webinar and log in as a guest. Castellano will be able to answer questions from webinar attendees via the Adobe Connect chat box. The ILF website contains links for archived webinars from all previous sessions: http://www.extension.iastate.edu/ilf/Webinars/. The webinar archive will also be available in a podcast through iTunes.


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