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Copy link Polysulphate Sugarcane Trial in USA
4.5
USDA ARS Sugarcane Research Unit, White Castle, Louisiana, USA 2018
4.5
Key Conclusions
Polysulphate fertilizer increased sugarcane yield by 4.5% compared to the conventional grower standard practice.
Objective
To evaluate Polysulphate as a K fertilizer source for sugarcane (Saccharum officinarum) grown in sandy, silt-loam soils in southern Louisiana, USA.
Trial Details
Trial station
USDA ARS Sugarcane Research Unit, White Castle, Louisiana, USA
Product
Polysulphate Granular
Assessments
Sugar yield
Treatments
Grower standard practice consisted of 135 kg N/ha (120 lbs N/acre) in the form of urea, 45 kg P2O5/ha (40 lbs P2O5/acre) in the form of DAP and 135 kg K2O/ha (120 lbs K2O/acrein the form of KCl. The trial tested two Polysulphate treatments which supplied the same total quantities of nutrients as the grower standard practice, but with the K portion being made up of 50:50 Polysulphate and KCl, or 100% Polysulphate.
Treatments
Grower standard practice consisted of 135 kg N/ha (120 lbs N/acre) in the form of urea, 45 kg P2O5/ha (40 lbs P2O5/acre) in the form of DAP and 135 kg K2O/ha (120 lbs K2O/acrein the form of KCl. The trial tested two Polysulphate treatments which supplied the same total quantities of nutrients as the grower standard practice, but with the K portion being made up of 50:50 Polysulphate and KCl, or 100% Polysulphate.
Results
Using Polysulphate to supply 50% of the K application increased sugar yield by 504 kg/ha (450 lbs/acre) or 4.5% over the conventional grower standard practice.
Polysulphate fertilizer increases sugarcane yield.
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