Presentations
W9
Nutrient Management
Wed, Dec 14, 2022
9:00am to 9:50am
W2
Nutrient Management
Wed, Dec 14, 2022
2:00pm to 2:50pm
Nutrient Removal with Grain Corn: Not Just a Yield Story
This talk will summarize how much grain concentrations of macro- and micro-nutrients change in response to current hybrids, environments and management. Are the standard nutrient removal recommendations still applicable? Grain nutrient concentrations are not declining in modern corn hybrids, and are often increasing. Higher kernel nutrient concentrations can be achieved even when corn yields increase dramatically. The primary drivers of nutrient removal with modern grain corn harvest will be reviewed by using data collected over the last decade in Indiana. Farmer decision making about future nutrient management needs to consider what is changing with actual nutrient removal in their production systems.
Speaker
Tony Vyn
Dr. Tony J. Vyn, Professor of Agronomy and Corteva Agriscience Henry A. Wallace Chair in Crop Sciences. Tony has studied crop rotation and tillage systems for his whole career, first at the University of Guelph in Ontario, Canada, and then at Purdue University since 1998. For the past 25 years, Tony has directed Purdue’s long-term tillage plots that were started in 1975 by previous faculty at Purdue. Together with many graduate students and research team members, Tony has investigated the applications and challenges involved in adopting more sustainable cropping systems. He has always been interested in getting to a better understanding corn physiology and nutrient efficiency changes with modern genetics and new management approaches. Tony plans to retire at the end of 2023.