♦ Fully water-soluble ♦ Consists of 100% plant nutrients ♦ Highly-concentrated source of phosphorus for plants (61% P2O5 / 27% P) ♦ Free of chloride, sodium and other detrimental elements for plants ♦ Moderately low pH (safer and less corrosive compared to urea phosphate) ♦ Suitable for Nutrigation™ ( Fertigation) , foliar application and production of fertilizer blends and nutrient solutions
Double benefit: Not only is Haifa MAP™ an efficient source of phosphorus, it also facilitates plant uptake of the phosphorus naturally present in the soil. This is due to the ammonium (NH4+) in Haifa MAP™, which lowers the pH in the root zone and thus enhances phosphorus availability.
As a highly efficient source of phosphorus and nitrogen for plants, Haifa MAP™ is recommended for use at the beginning of the growth season, when phosphorus availability is crucial for the establishment of the root system. Haifa MAP™ can be tank-mixed with other fertilizers to meet crop nutritional needs throughout the growth cycle*.
Haifa MAP™ is suitable for preparation of fertilizer blends and for production of liquid fertilizers.
*Note: Haifa MAP™ should not be mixed with calcium or magnesium fertilizers.
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.
