Contact Us
Product analysis
| Nutrient | Content |
|---|---|
| P2O5 | 61% |
| P | 27% |
| N total | 12% |
| N-NH4 | 12% |
Water solubility
The solubility of Haifa MAP™ is considerably enhanced by increase in water temperature, as shown in the following table.
| Water temperature (ºC) | 0 | 10 | 20 | 30 | 40 |
|---|---|---|---|---|---|
| Solubility (g/100g water) | 22.7 | 29.5 | 37.4 | 46.4 | 56.7 |
pH and EC
Haifa MAP™ has a moderately low pH that remains almost constant at different concentrations.
| Concentration (%) | 0.1 | 0.2 | 0.3 | 1.0 | 5.0 |
| PH | 4.7 | 4.6 | 4.6 | 4.4 | 4.2 |
The electrical conductivity (EC) increases substantially when high concentrations of Haifa MAP™ are used.
| Concentration (%) | 0.1 | 0.2 | 0.3 | 1.0 | 5.0 |
| EC (mS/cm) | 0.86 | 1.66 | 2.5 | 7.4 | 27.8 |
Application Recommendations
Nutrigation™
Due to its unique characteristics, Haifa MAP™ can be applied through any irrigation system and on any growing medium. Unlike phosphoric acid, Haifa MAP™ is moderately acidic. Thus, it does not form corrosion on fertilizer pumps or irrigation equipment.
Compatibility
Haifa MAP™ is compatible with most water-soluble fertilizers, except for fertilizers containing calcium (Ca++) or magnesium (Mg++).
To apply Haifa MAP™ in combination with calcium or magnesium fertilizers, use two fertilizer tanks. If the system includes only one tank, apply these fertilizers at different times.
Quantitative Nutrigation™
Each kilogram of Haifa MAP™ in the tank provides 610 grams of phosphorus oxide (P2O5) and 120 grams of ammonium-nitrogen (N-NH4).
Example: from initial establishment to flowering, open-field grown tomatoes require phosphorus at a rate of 1.5 kg P2O5 per hectare per day. To provide this, apply Haifa MAP™ at a rate of 2.5 kg per hectare per day. This will supply also 0.3 kg nitrogen per hectare per day. To complete nitrogen and potassium requirements, apply ammonium nitrate and Multi-K™ (potassium nitrate).
Proportional Nutrigation™
The phosphorus concentration in the irrigation water depends on the quantity of Haifa MAP™ in the tank mix, and on the injection ratio. Use the following table to calculate the quantity of Haifa MAP™ and the injection ratio needed to reach a given concentration in the irrigation water.
Product analysis
| Haifa MAP™ g/1000 liter water | Nutrient concentration (ppm, g/1000 litre) | ||
|---|---|---|---|
| N | P2O5 | P | |
| 100 | 12 | 61 | 27 |
| 130 | 15 | 79 | 34 |
| 149 | 17 | 90 | 40 |
| 185 | 22 | 112 | 50 |
| 370 | 44 | 225 | 100 |
Foliar Nutrition
Foliar spray with Haifa MAP™ is effective in supplying phosphorus whenever quick response to deficient plants is required. It should be considered as a supplemental method to soil applied phosphorous. The concentration of Haifa MAP™ solutions can be increased according to leaf age.
On young leaves, a spray concentration of 0.5% Haifa MAP™ is recommended in most crops. On mature leaves and more tolerant crops a higher concentration (1.0% or more) may be applied.
Haifa MAP™ is compatible with most commonly used pesticides and fertilizers. However, it should not be mixed with calcium or magnesium fertilizers. It is advisable to confirm compatibility of your intended spray-mix by preparing a sample of the spray materials at their recommended concentrations to rule out the possibility of a detrimental cross reaction. This mixture should be sprayed onto small area prior to commercial treatment, to assess whether an adverse effect occurs.
