University of Maryland Extension

Webinar: Is There a Best Way to Fertilize Corn with Nitrogen? (1 CEU)

When: 
Tuesday, Dec. 4, 2018 - 12:00pm to 1:00pm
Where: 
Online
Event Type: 
Presenter: 
Dr. Fred Below and Brad Bernhard
Description/Notes: 

An American Society of Agronomy webinar sponsored by Verdesian Life Sciences.

Assuring adequate nitrogen (N) availability during key stages of plant growth is a major factor affecting yield and profitability of corn. Nitrogen uptake by modern corn hybrids follows a sigmoidal pattern over time with limited uptake before the V8 growth stage. Between V8 and flowering, two thirds of total plant N uptake occurs, equal to a rate of 7 lbs. of N per acre per day for a period of at least 21 continuous days. Side-dressing N to coincide with this period of maximum uptake is a logical approach to assure adequate N availability, while limiting its potential for loss. A relatively new technology known as the Y-drop allows for placement of side-dressed N directly next to the crop row, where proximity to roots and stem flow of water helps to assure availability by creating a zone of high N concentration directly in the plant’s rooting zone. Alternatively, technologies that inhibit nitrification of ammonium-N, prevent the volatilization of urea, or time the release of urea with water (such as polymer coated urea), along with banding of the N fertilizer, are other ways to assure adequate N availability at the right time and in the right place. In this webinar, we will present findings from our recent research examining the impacts of different combinations of N fertilizer sources, different timings of N application, use of loss mitigating technologies, and varying N placement techniques on corn N use and productivity. 

MDA is offering 1 CEU for Nutrient Management with proof of attendance.


Register here: 
https://www.agronomy.org/education/classroom/classes/606

Cost: 
Free
Contact: 
ASA
Contact Email: 
membership@agronomy.org
Contact Phone: 
608-273-8080
Maintained by the IET Department of the College of Agriculture and Natural Resources. © 2020. Web Accessibility

University programs, activities, and facilities are available to all without regard to race, color, sex, gender identity or expression, sexual orientation, marital status, age, national origin, political affiliation, physical or mental disability, religion, protected veteran status, genetic information, personal appearance, or any other legally protected class. If you need a reasonable accommodation to participate in any event or activity, please contact your local University of Maryland Extension Office.