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Copy link Agromaster Seed Potato Trial
82
East Riding of Yorkshire, UK 2021
82
Key Conclusions
The controlled release of nitrogen from Agromaster rewarded the potato crop with a higher NUE (an 82% increase compared to the grower’s standard practice) and increased the total seed potato yield by 10%. Over the course of this trial choosing Agromaster, instead of the grower’s practice, produced an additional return on investment (ROI) of £736 per ha.
Objective
To compare the efficiency of Agromaster, a controlled release nitrogen-based fertiliser, with ammonium nitrate, in one application, for seed potato production.
Trial Details
Trial station
East Riding of Yorkshire, UK
Crop
Potato
Product
Agromaster
Assessments
Yield and distribution per class, and NUE
Treatments
This seed potato (var. Sassy) trial consisted of a randomised block design with 6 repetitions. The trial was performed by Eurofins UK using the trial treatments outlined below.
| Treatment | Product | Dose | Total-N mineral | Phenological stage |
|---|---|---|---|---|
| kg/ha | kg/ha | |||
| Zero N | None | before planting | ||
| Grower Practice | Ammonium nitrate 33.4-0-0 | 447 | 150 | before planting |
| Agromaster | Agromaster 39-0-0 1-2M, 60% coated N | 383 | 159 | before planting |
| All treatments received the same level of P and K | ||||
Treatments
This seed potato (var. Sassy) trial consisted of a randomised block design with 6 repetitions. The trial was performed by Eurofins UK using the trial treatments outlined below.
| Treatment | Product | Dose | Total-N mineral | Phenological stage |
|---|---|---|---|---|
| kg/ha | kg/ha | |||
| Zero N | None | before planting | ||
| Grower Practice | Ammonium nitrate 33.4-0-0 | 447 | 150 | before planting |
| Agromaster | Agromaster 39-0-0 1-2M, 60% coated N | 383 | 159 | before planting |
| All treatments received the same level of P and K | ||||
Results
| Treatment | Zero N | Grower Practice | Agromaster |
|---|---|---|---|
| Total yield, mt/ha | 36.59 | 41.53 | 45.58 |
| Yield (45-65 mm), mt/ha | 16.71 | 19.05 | 20.14 |
| Yield (65+ mm), mt/ha | 19.88 | 22.48 | 25.44 |
| Fertilizer cost, £/ha | 291 | 329 | |
| ROI, total income minus fertilizer cost, £/ha | 8,294 | 9,030 | |
| Calculation based on market price for 45-65 mm tubers of £250/mt and for 65+ mm tubers of £170/mt. | |||
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