AMES, Iowa — Iowa Learning Farms will host a webinar on Wednesday, Sept. 2 at noon about the impacts of nitrogen management practices and cover crops on downstream nitrate-N loss.
The 4Rs of nitrogen management are right source, right rate, right time and right place. Right source refers to using the correct fertilizer for the soil and crop needs, right rate means that the application rate matches the crop requirements, right time means ensuring that nitrogen is available when the crop needs it, and right place refers to placing and keeping nitrogen where the crop can get to it.
Matt Helmers, director of the Iowa Nutrient Research Center at Iowa State University, will explain the long-term impacts of using nitrogen management practices, as well as the use of cover crops, on nitrate-N loss from agricultural systems.
Applying nitrogen closer to when crops take it up has the potential to reduce nitrogen loss. Future nitrogen management will need to take the dry conditions of summer 2020 into consideration and cover crops may be an important tool for reducing risk of increased nitrogen loss during subsequent wet periods.
“Agricultural producers are increasingly challenged to reduce downstream nitrate-N loss,” said Helmers, a professor and extension agricultural engineer who focuses on agricultural water quality, specifically nitrate-N loss through drainage systems. “The first step in reducing nitrogen loss is good in-field nitrogen management.”
To participate in the live webinar, shortly before noon on Sept. 2, click the following URL, or type this web address into your internet browser: https://iastate.zoom.us/j/364284172.
Or, go to https://iastate.zoom.us/join and enter meeting ID: 364 284 172. Or, join from a dial-in phone line by dialing: +1 312 626 6799 or +1 646 876 9923; Meeting ID: 364 284 172.
The webinar will also be recorded and archived on the Learning Farms website, so that it can be watched at any time.
A Certified Crop Adviser board-approved continuing education unit has been applied for, for those who are able to participate in the live webinar. Information about how to apply to receive the credit (if approved) will be provided at the end of the live webinar.
Original photo: nitrogen management.