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Copy link Polysulphate® Strawberry Trial in Colombia
Yield Increase
Sotara, Cauca State, Colombia 2019
Yield Increase
Key Conclusions
Using Polysulphate as a complementary nutrient source increased strawberry yield by 95%, while also improving fruit setting, fruit appearance, and shelf life in a trial in Colombia.
Objective
To evaluate the effect on strawberry (Fragaria X ananassa Duch.) yield of using Polysulphate as a complementary nutrient source.
Trial Details
Trial station
Sotara, Cauca State, Colombia
Crop
Strawberry
Product
Granular Polysulphate 0-0-14
Assessments
Total yield during 2 months of the harvest peak
Treatments
This trial consisted of twelve 35 m beds, each with 210 plants. Four treatments, or Polysulphate doses, were applied on a 1-year-old plantation:
- No Polysulphate
- 5 g/plant (250 kg/ha)
- 10 g/plant (500 kg/ha)
- 15 g/plant (750 kg/ha)
All treatments received a total NPK application of 200, 140 and 280 kg/ha, from urea, Enraifos, potassium sulfate, kieserite, and included Polysulphate as a complementary K, Ca, and Mg source. All treatments were also fertigated every week using the farmer’s combination of all nutrients.
Treatments
This trial consisted of twelve 35 m beds, each with 210 plants. Four treatments, or Polysulphate doses, were applied on a 1-year-old plantation:
- No Polysulphate
- 5 g/plant (250 kg/ha)
- 10 g/plant (500 kg/ha)
- 15 g/plant (750 kg/ha)
All treatments received a total NPK application of 200, 140 and 280 kg/ha, from urea, Enraifos, potassium sulfate, kieserite, and included Polysulphate as a complementary K, Ca, and Mg source. All treatments were also fertigated every week using the farmer’s combination of all nutrients.
Results
- Polysulphate had a positive effect on strawberry yield.
- Polysulphate increased yield up to 95% compared with the control without Polysulphate.
- Supply of K, Ca, Mg and S from Polysulphate improved the fruit setting, appearance, and shelf life.
- A recommended Polysulphate dose of 10 g/plant 2 or 3 times a year increases strawberry productivity and improves fruit quality.
Polysulphate fertilizer increases strawberry yield.
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