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Copy link Polysulphate & ICL PotashpluS Soybean Trial
3.9
Cruz Alta, Rio Grande do Sul state, Brazil 2019
3.9
Key Conclusions
Both Polysulphate and ICL PotashpluS proved to be highly viable sources of sulfur for soybean fertilization, increasing yield by more than 3.9% in comparison to fertilization without sulfur, and by 1.5 to 3.5% compared to other sulfur sources.
Objective
To evaluate the agronomic efficiency of Polysulphate and ICL PotashpluS as sulfur sources on the yield of soybean.
Trial Details
Trial station
Cruz Alta, Rio Grande do Sul state, Brazil
Crop
Soybean
Product
Polysulphate®
Assessments
Soybean yield
Treatments
This randomized block trial consisted of six treatments with four replications. Treatments were combinations of MAP, MOP, Polysulphate, ICL PotashpluS, single superphosphate, pastilled elemental S, and one commercial blend with MAP and sulfur in two forms, sulfate and elemental. All treatments were fertilized with 80 kg/ha P2O5, 80 kg/ha K2O and 20 kg/ha S, except the control treatment where S was not applied.
The MAP, single superphosphate, MAP+S, Polysulphate and pastilled elemental S were applied in the furrow; MOP and ICL PotashpluS were applied broadcast and pre-planting.
Treatments
This randomized block trial consisted of six treatments with four replications. Treatments were combinations of MAP, MOP, Polysulphate, ICL PotashpluS, single superphosphate, pastilled elemental S, and one commercial blend with MAP and sulfur in two forms, sulfate and elemental. All treatments were fertilized with 80 kg/ha P2O5, 80 kg/ha K2O and 20 kg/ha S, except the control treatment where S was not applied.
The MAP, single superphosphate, MAP+S, Polysulphate and pastilled elemental S were applied in the furrow; MOP and ICL PotashpluS were applied broadcast and pre-planting.
Results
- Polysulphate in the furrow and ICLPotashpluS in broadcast are highly viable sources of sulfur for soybean fertilization.
- More than 3.9% increase in soybean yield in comparison to fertilizer strategies without sulfur.
- Compared to other sulfur sources, ICL products (Polysulphate and ICL PotashpluS) increased soybean yield in this trial by 1.5 to 3.5%.
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