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Copy link Polysulphate Sugarcane Trial in USA
4.5
USDA ARS Sugarcane Research Unit, White Castle, Louisiana, USA 1970
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
Crop
Sugarcane
Product
Granular Polysulphate
Assessments
Sugar yield
Treatments
Grower standard practice consisted of 135 kg N/ha in the form of urea, 45 kg P2O5/ha in the form of DAP and 135 kg K2O/ha in the form of KCl. The trial tested 2 Polysulphate treatments which were duplicates of 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 in the form of urea, 45 kg P2O5/ha in the form of DAP and 135 kg K2O/ha in the form of KCl. The trial tested 2 Polysulphate treatments which were duplicates of 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 dose increased the sugarcane yield by 504 kg/ha (4.5%) over conventional grower standard practice.
Polysulphate fertilizer increases sugarcane yield.
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