Maximizing Fertilizer Use

— Written By and last updated by Tamara Carawan
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At our winter meetings, we were pleased to welcome Dr. Chad Poole, Dr. Deanna Osmond, Dr. Luke Gatiboni, and Dr. Ron Heiniger, all from NC State Extension, to talk about maximizing fertilizer use.

Dr. Chad Poole, Water Resiliency Specialist, discussed the effects that water stress has on corn yield, cost associated with poor drainage, and the benefits of selecting corn hybrids adapted to water stress.

table showing gross revenue of corn planted


Check out these links for more information on this topic:

Dr. Deanna Osmond, Soil Fertility Specialist, discussed the possibility of lowering corn nitrogen rates to match Realistic Yield Expectations using the NC State Extension RYE database, the effect of slow release and nitrogen inhibitors, and starter phosphorus recommendations to reduce fertilizer cost.

PowerPoint slide about farmer-based nitrogen rate studies


Check out these links for more information on this topic:

Dr. Luke Gatiboni, Soil Fertility Specialist, discussed the reason behind high fertilizer prices, recommendations to maximize return on investment with phosphorus and potassium fertilizer, and high yielding soybean fertility trials.

map of NC showing potassium and phosphorus test sites


Check out these links for more information on this topic:

Dr. Ron Heiniger, Corn Specialist, discussed the need to weigh yield potential and risk, choosing seeding rates to maximize return, using fertilizer efficiently, using corn climate tool to target planting window, and the need for starter fertilizer and alternatives.

PowerPoint about reducing costs while preserving yield in corn


Check out these links for more information on this topic:

If you have any questions about any of these topics, please contact Daniel Simpson at 252-745-4121 or