Polysulphate increased rice yield by 5.5% over grower standard practice.
LSU AgCenter Rice Research Station, Rayne, Louisiana, USA
To evaluate Polysulphate as a fertilizer source for ‘CL153’ rice grown in sandy, silt-loam soils in southern Louisiana, USA.
This trial compared rice grow using grower standard practice, and grower standard practice with Polysulphate.
Grower standard practice consisted of 157 kg N/ha in the form of urea, 112 kg N/ha at pre-flood, and 45 kg N/ha at green ring. Phosphorus was applied pre-flood at 112 kg P2O5/ha from DAP and Super PK. Potassium was applied pre-flood at 67 kg K2O/ha per acre from Super PK. The Polysulphate treatment was a duplicate of the grower standard practice with the addition of 196 kg Polysulphate/ha applied pre-flood.
- Polysulphate increased rice yield by 534 kg/ha (5.5%) over grower standard practice.