OVERVIEW
- Potassium (K) and boron (B) are key components of a potato nutrition program.
- Deficiencies of both K and B are often observed in coarse, well-drained, sandy soils.
- Boron is crucial for promoting tuber yield, internal quality and storability.
- Research has shown that K fertilizers containing micronutrients in a single granule provide improved nutrient distribution and increased crop nutrient uptake compared to conventional fertilizer blends.
- Aspire® premium potash combines K and B in each granule to help achieve uniform nutrition distribution
TRIAL DETAILS
Locations and Crop Management:
Crop: Potato (Solanum tuberosum)
Year: 2015-2016
Locations: 2 trials – 1 trial per year at Becker, MN
Data Source: Field study conducted by the University of Minnesota.
Experimental Design: Small-plot RCBD with 4 replications.
Soil Type: Loamy sand
Cultivar: Russet Burbank
Cropping Conditions:
K Rate: 300 lbs K₂O/ac applied as MOP or Aspire®
B Rate: 2.5 lbs B/ac applied as granular B or Aspire®
Application Method: Preplant broadcast and incorporated
RESULTS
SUMMARY
- The trial was responsive to both K and B.
- Marketable yield with Aspire® was 42 cwt/ac (7.7%) higher than MOP.
- Marketable yield with Aspire® was 31 cwt/ac (5.5%) higher than MOP + B.
- Higher marketable yields achieved using Aspire® demonstrated the benefits of B and uniform nutrient distribution.
