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Copy link Rocket Trial with Polysulphate® and Agromaster®
Yield Increase
Campania, Italy 2017
Yield Increase
Key Conclusions
Rocket yield was significantly higher right from the first yield in plots where Polysulphate and Agromaster® were used, compared to the farmers’ practice.
Objective
To investigate the effect of Polysulphate and Agromaster® on the yield of greenhouse grown rocket (Eruca sativa) salad.
Trial Details
Trial station
Campania, Italy
Product
Granular Polysulphate
Assessments
Fresh yield, and dry matter yield
Treatments
This trial consisted of 3 treatments with 4 replicates in a randomized complete block design. The treatments were:
- Farmers’ practice: 1,500 kg/ha of organic fertilizer + 350 kg/ha of 14-7-17 NPK fertilizer.
- 1,500 kg/ha of organic fertilizer + 300 kg/ha of Agromaster® 11-48 + 600 kg/ha of Polysulphate.
- 1,500 kg/ha of organic fertilizer + 400 kg/ha of Agromaster® 15-24-10 + 600 kg/ha of Polysulphate
All fertilizers were applied before sowing. The crop was harvested on 8 successive dates.
Treatments
This trial consisted of 3 treatments with 4 replicates in a randomized complete block design. The treatments were:
- Farmers’ practice: 1,500 kg/ha of organic fertilizer + 350 kg/ha of 14-7-17 NPK fertilizer.
- 1,500 kg/ha of organic fertilizer + 300 kg/ha of Agromaster® 11-48 + 600 kg/ha of Polysulphate.
- 1,500 kg/ha of organic fertilizer + 400 kg/ha of Agromaster® 15-24-10 + 600 kg/ha of Polysulphate
All fertilizers were applied before sowing. The crop was harvested on 8 successive dates.
Results
- The cumulative yields in the Polysulphate and Agromaster® treatments were significantly higher than the farmers’ practice (+1.58 and +2.85 t/ha respectively). The differences were evident right from the 1st harvest.
- From the 3rd harvest onwards, the rocket fertilized with Polysulphate and Agromaster® produced higher dry matter yield per hectare. This parameter is essential to increase the shelf life of the rocket salad after harvesting.
- The return on investment (ROI) was higher in both Polysulphate treatments when compared with the farmers’ practice: 1,630 €/ha for Polysulphate treatment (1) and 3,390 €/ha for Polysulphate treatment (2).
Combining Polysulphate and Agromaster® increases cumulative rocket yield by 8.2%.
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