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Copy link Polysulphate Pineapple Trial in Malaysia
11
Grade-A Yield Increase
Polysulphate fertilizer increased the number of grade-A fruits by 11%, increased sugar content, and extended shelf life of Pineapple fruit.
Simpang Renggam, Johor, Malaysia 2018
11
Key Conclusions
Polysulphate fertilizer increased the number of grade-A pineapple fruit by 11%, while also increasing sugar content, and extending shelf life of the fruit.
Objective
To determine the effectiveness of granular Polysulphate to improve the growth and yield of pineapple (Ananas comosus) on peat soil.
Trial Details
Trial station
Simpang Renggam, Johor, Malaysia
Crop
Pineapple
Product
Granular Polysulphate
Assessments
Yield, and fruit grade
Treatments
| Treatment | Fertilizer | Rate |
|---|---|---|
| Control | Compound fertilizer (13-13-21+TE) | 500 kg/ha |
| Polysulphate | Granular Polysulphate (0-0-14 + 48% SO3+6MgO+17CaO) | 500 kg/ha |
Treatments
| Treatment | Fertilizer | Rate |
|---|---|---|
| Control | Compound fertilizer (13-13-21+TE) | 500 kg/ha |
| Polysulphate | Granular Polysulphate (0-0-14 + 48% SO3+6MgO+17CaO) | 500 kg/ha |
Results
- In the control plot, the majority of plants showed symptoms of K deficiency during the fruiting stage, while the plants in the Polysulphate plot had fewer K deficiency symptoms.
- Plants treated with Polysulphate had bigger leaves and fruit.
- Polysulphate application increased the sugar content in the fruit: in control plots the Brix level was 13-16% compared to 16-19% with Polysulphate.
- Fruit from the Polysulphate plots had a longer shelf life.
- Total yield was similar for both plots, but there was an 11% increase in grade-A fruits (> 660 g/piece) in the Polysulphate plot compared to the control plot.
Polysulphate increases the number of grade-A pineapple fruits by 100%.
Polysulphate reduces K-deficiency symptoms and increases pineapple fruit size.
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