Spread width influences both production capacity and costs. Granule strength and bulk density must be kept in mind when choosing the right type of mineral fertilisers and correct spreader settings. Below we describe how to spread Acron granules evenly and share EU test results.
Optimal mineral fertiliser distribution
Granules with high strength and bulk density achieve the best distribution results.
Granule quality parameters for uniform distribution up to 36 metres:
• Bulk density from 0.9 to 1 kg per litre
• Granule strength from 1.5 N m to 4 N m
Acron carried out tests to assess product quality parameters.
Quality parameters for Acron products
|
Fertiliser |
Granule bulk density, kg per l |
Granule strength, MPa |
|
NPK 16-16-16 |
1.02 |
3 N m |
|
NPK 22-15-0-7 |
1.03 |
3 N m |
|
NPK 19-9-19 |
1.01 |
3 N m |
|
NPK 15-15-15 (SOP) |
0.95 |
3 N m |
Uniformity of NPK 16-16-16 distribution at 36 metres compared to the standard
Acron NPK achieved an excellent coefficient of variation (CV) of 4.3%. The difference between the standard and Acron's product is within the statistical margin of error.
Summarised results of European ballistic tests on maximum distribution width of mineral fertilisers
|
Fertiliser |
Distribution width, m * |
Variation ratio |
|
|
Value, % |
Grade |
||
|
NPK 16-16-16 |
42 |
4.3 |
Excellent |
|
NPK 22-15-0-7 |
36 |
3.4 |
Excellent |
|
NPK 19-9-19 |
40 |
4.9 |
Excellent |
|
NPK 15-15-15 (SOP) |
36 |
4.5 |
Excellent |
|
NPK 20-20-0 |
42 |
<5 |
Excellent |
|
NPK 20-10-10 |
36 |
3.2 |
Excellent |
|
NPK 18-6-18+5SO₃+2MgO |
48 |
<5 |
Excellent |
|
AN (yellow) |
30 |
<5 |
Excellent |
* Uniform distribution width depends on:
- Spreader discs and design features
For example, AMAZONE’s ZA-X spreader has a maximum distribution width of 18 metres, the ZA-V model distributes product up to 36 metres, and the ZA-TS distributes product up to 54 metres. The same fertiliser grade can be spread over different widths, depending on the spreader.
Agricultural machinery by spread width, 2019–2020
Seventy-one per cent of spreaders have a maximum spread width of 24 metres. All Acron products meet spreader requirements. Better fertiliser application can be achieved using correct unit settings.
Completed trials
Ø 2020, Germany, Amazone laboratory (test results and equipment settings)
Ø 2019, Russia, Eurotechnika plant laboratory (test results and equipment settings)
Ø 2019, France, Amazone laboratory (test results and equipment settings)
Ø 2018, Germany, RAUCH laboratory
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