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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
10% higher seed potato yield with Agromaster controlled release fertilizer.
When compared to the standard grower’s practice, Agromaster produced an increase in NUE of 82% in this seed potato crop.
| 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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