Field trial evaluations include: nitrogen rate, timing, stabilizer, source, rate after manure and advanced rate trials. Examples and criteria for each are listed below.
Farmers and crop advisers can suggest other field trials for management practices they feel could provide benefits for both improving farm performance and reducing nitrogen losses.
Preplant: Urea 150 lb N/acre vs 120 lb N/acre
Side dress: 28% UAN 20 gal (60 lb N/acre) vs (30 lb N/acre)
Dealer Nitrogen Programs comparisons (Greenseeker, VRT, Adapt N, Climate Corp, 360 Yield Center)
Fall vs Spring
All Preplant vs Side dress/Split
N-Serve, Instinct, ESN, Agrotain
UAN vs Anhydrous Ammonia
Preplant: Urea 60 lb N/acre vs 30 lb N/acre
Side dress: 28% UAN 20 gal (60 lb N/acre) vs 10 gal (30 lb N/acre)
Evaluate first and/or second year manure nitrogen credits
These sites are newer to the program. They are designed to answer questions that farmers have about nutrient management and to inform the University of Minnesota’s current nitrogen fertilizer recommendations.
Additional compensation is available for farmers and crop advisers participating in advanced rate trials. Participating farmers are compensated $1,000 and crop advisers are compensated $500 for each field trial.