OVERVIEW
- Potassium (K) and boron (B) are key components of a sugarcane nutrition program.
- Deficiencies of both K and B are often observed in coarse, well-drained, sandy soils.
- Boron is crucial for cell growth, reproductive development and increased yield.
- 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 B distribution.
TRIAL DETAILS
Locations and Crop Management:
Crop: Sugarcane (Saccharum officinarum)
Years: 2013–2014; 2016–2017
Locations: 4 crops (2 plant and 2 ratoon) across 2 locations in LA
Data Source: Field studies conducted by Louisiana State University.
Experimental Design: Small-plot RCBD with 4 replications.
Cropping Conditions:
N and P Rate: As recommended by soil test
K Rate: 120 lbs K₂O/ac applied as MOP or Aspire®
B Rate: 1 lb B/ac applied as Aspire®
Application Timing: Applied in March (plant and ratoon)
Application Method: Broadcast incorporated by furrow tillage
Soil Type: Silt loam soil at both locations
Results
SUMMARY
- Cane and sugar yield increased with the addition of K and B.
- Cumulative cane yield with Aspire® was 6.5 tons/ac (7.0%) higher than MOP.
- Cumulative sugar yield with Aspire® was 0.8 ton/ac (7.5%) higher than MOP.
- Higher cane yield and sugar content achieved using Aspire® demonstrate the benefits of B and uniform nutrient distribution.
