Characteristics
OR – Tailor made, Chloride Free solution 4-2-6 + 6%TE + 1.5%Ca + 0.9%Mg
Affective Fertigation for crops in soilless media that are sensitive to calcium and magnesium deficiencies, and with optimum nitrate/ammonium ratio.
6% TE (chelated EDTA): 660 ppm Iron (Fe), 280 ppm Manganese (Mn), 150 ppm Zinc (Zn), 30 ppm Copper (Cu) and 8.6 ppm Molybdenum (Mo).
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Corrosivity |
EC |
pH |
|
Volume weight |
Content (gram/liter) |
OR liquid solution |
|
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Moderately corrosive |
+ 0.45 dS/m |
acid solution |
%NO3– |
%NH4+ |
gr/cm³ |
Mg |
Ca |
K2O |
P2O5 |
N |
N-P-K |
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|
|
Diluted to 1 liter solution / 1 m³ irrigation water. |
(3.5 – 2.8) |
90 |
10 |
1.22 |
9 |
15 |
73 |
24 |
49 |
4-2-6 |
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Applications
Fertigation for plants in greenhouses, nurseries, orchards, and crops in soilless media that are sensitive to calcium and magnesium deficiencies.
- Application of 1 solution instead of 2-3 separate solutions (NPK, calcium and magnesium).
- OR solutions containing about 90% of the nitrogen as nitrate (NO3-) to prevent acidification (absorption of Ammonium (NH4+) by the plant roots) of the growing medium.
- Chlorine-free solution.
- OR solution for application in inert growing media without buffer capacity – pH: rock wool, perlite, dune sand.
- Enrichment with calcium and magnesium to prevent the blossom-end rot phenomenon in sensitive crops.
Dosage:
The dosage generally depends on the plant nutrition consumption and absence of them in soil solution. If there are no soil fertility analyzes, then the OR dosage generally is:
- Application 10-100 liters/ hectare/ day *The small dose is for small plants and high dose for big plants, depend on crop varieties, stage of growth.
- For proportional fertigation: 1-3 liters/1000L of irrigation water.
Note: For agricultural use only, the recommendations are for standard use, and should be tested in small scale first. For optimal results consult with your agronomist.