The recommendations in this section are using the RoI fertiliser classification system and are based on Teagasc research.
Due to slight differences between the RoI and NI classification systems, these recommendations are only a guide for Northern Ireland farmers. They can be converted between the RoI and NI classification systems using this Conversion Table.
Before choosing your fertiliser products please consult your local advisor to ensure that you do not exceed the limits for your farm as determined by the nitrates directive (SI no 31 of 2014)
| Table 52. Nutrient Requirements (units/acre) | |||
|---|---|---|---|
| Index | N | P | K |
| 1 Very Low | 0 | 40 | 100 |
| 2 Low | 0 | 32 | 48 |
| 3 Medium | 0 | 16 | 32 |
| 4 High | 0 | 0 | 0 |
Fertiliser Recommendation
| Table 53. Application rate (bags/acre) | ||||
|---|---|---|---|---|
| Index | K1 very low | K2 low | K3 medium | K4 high |
| P2 low | 3x 0-7-30 1x 0-10-20 |
1x 50% Muriate of Potash 2 X 16% Superphosphate |
1 x 0-7-30 1 ½ x 16% Superphosphate |
2 x 16% Superphosphate |
| P3 medium | 2 x Muriate of Potash 1 x 16% Superphosphate |
1 x Muriate of Potash 1 x 16% Superphosphate |
¾ x Muriate of Potash 1 x 16% Superphosphate |
1 x 16% Superphosphate |
| P4 high | 2 x Muriate of Potash | 1 x Muriate of Potash | ¾ x Muriate of Potash | No Fertiliser Required |
Nitrogen is not required. Bean crops produce their own Nitrogen from the soil.
