26
Jun
Unit conversions tables
Nutrient form conversions
| From | To | Multiply by |
|---|---|---|
| NH4 | N-NH4 | 0.821 |
| NO3 | N-NO3 | 0.226 |
| N | NH4 | 1.285 |
| N | NO3 | 4.427 |
| P2O5 | P | 0.436 |
| PO4 | P | 0.326 |
| P | P2O5 | 2.291 |
| P | PO4 | 3.066 |
| K2O | K | 0.830 |
| K | K2O | 1.205 |
| CaCO3 | Ca | 0.400 |
| CaO | Ca | 0.714 |
| Ca | CaCO3 | 2.497 |
| MgO | Mg | 0.603 |
| Mg | MgO | 1.657 |
Nutrient concentration units
| Element | mmol/L | meq/L | ppm |
|---|---|---|---|
| N-NO3 | 1 | 1 | 14 |
| N-NH4 | 1 | 1 | 14 |
| P-H2PO4 | 1 | 1 | 31 |
| K | 1 | 1 | 39 |
| Ca | 1 | 2 | 40 |
| Mg | 1 | 2 | 24 |
| Na | 1 | 1 | 23 |
| Cl | 1 | 1 | 35.5 |
| S-SO4 | 1 | 2 | 32 |
| Fe | 1 | 3 | 56 |
| Mn | 1 | 2 | 55 |
| Zn | 1 | 2 | 65 |
| Cu | 1 | 2 | 64 |
| B-B4O7 | 1 | 2 | 11 |
Fertilizer rates units
| From | To | Multiply by |
|---|---|---|
| kg/ha (kilograms per hectare) | lb/ac (pounds per acre) | 0.892 |
| lb/ac | kg/ha | 1.12 |
| MT/ha (Metric tonne/hectare) | tons/acre (short tons/acre) | 0.446 |
| tons/acre (short tons/acre) | MT/ha (Metric tonne/hectare) | 2.24 |
Yield units
| From | To | Multiply by |
|---|---|---|
| Bushel/acre corn | kg/ha corn | 62.48 |
| Bushel/acre corn | lbs/acre corn | 56 |
| Bushel/acre wheat/soybeans | kg/ha soybeans | 67.3 |
| Bushel/acre wheat/soybeans | lbs/acre soybeans | 60 |
| Bushel/acre barley | kg/ha barley | 53.8 |
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