Poly-Feed™ pHast is a line of water-soluble NPK fertilizers with low pH, designed to eliminate the need for acids in the nutrient solution.
Nutrigation™ with Poly-Feed™ pHast products provide complete plant nutrition throughout all growth stages. Each formula contains carefully balanced combination of macro nutrients, magnesium and chelated micro nutrients, to meet exact plant’s needs.
Based on urea phosphate and low-pH potassium nitrate, Poly-Feed™ pHast features strong acidifying power. Poly-Feed™ pHast is suitable for use with all irrigation systems, and also for foliar applications.
The benefits of Poly-Feed™ pHast
Enhanced solubility due to low pH of the solution
Safer use due to significantly reduced need for acids
Minimized hazard of clogging and reduced maintenance of irrigation equipment
Better nutrient uptake by the roots due to acidic root environment
Enables lower application rates and minimizes losses of nutrients
Available formulae
A wide range of formulae enables perfect match to plant’s needs as they change during the growth season.
Choose the most suitable formula in consideration of: crop development stage and soil fertility.
Formula
N:K2O
N-NO3
N-NH4
N-NH2
SO3
EC
(0.1% soln.)
pH
(0.1% soln.)
12-9-34+3MgO+ME*
1:2.8
9
1
2
3.9
1.21
3.56
12-14-28+2MgO+ME*
1:2.3
7
5
5.3
1.45
2.7
12-42-8+3MgO+ME*
1.5:1
2
6.5
3.5
3.9
0.97
3.38
15-6-25+4MgO+ME*
1:1.6
8.5
4
2.5
10.5
1.32
3.47
18-14-18+2MgO+ME*
1:1
8.8
3.5
5.7
2.8
1.2
2.7
20-10-10+4MgO+ME*
2:1
8
8
4
5.2
1.38
3.19
15-15-30
1:2
8.5
2.5
4
-
1.04
3.5
15-30-15
1:1
4.3
7.4
3.3
9.4
0.99
3.50
20-20-20
1:1
5.4
3.4
11.2
-
0.91
3.46
28-14-14
2:1
3
0.8
24.2
-
0.60
3.35
* Content of micro elements depends on formula. See data sheets for detailed specification.
Poly-Feed™ pHast™+Ca
Soluble low-pH fertilizers enriched with calcium
Poly-Feed™ pHast+Ca is a water-soluble NPK fertilizer, enriched with calcium and possess low pH, designed to eliminate the need for acids in the nutrient solution.
Poly-Feed™ pHast+Ca provides complete nutrition of nitrogen (N), phosphorus (P), potassium (K), calcium and chelated micronutrients. Based on
urea phosphate and low-pH potassium nitrate, Poly-Feed™ pHast+Ca features strong acidifying power.
At the low pH of the nutrient solution, the calcium from Poly-Feed™ pHast+Ca is readily assimilated and translocated in the plant.
Poly-Feed™ pHast+Ca is suitable for use with all irrigation systems, and also for foliar applications.
Specifications:
Free from chlorine, sodium and carbonate
Low in biuret
Iron, copper, manganese and zinc are in the form of EDTA-chelates
Molybdenum and boron are present in the form of soluble salts
Potassium is derived from technical grade potassium nitrate
Phosphorus is derived from technical grade acidic phosphates
The benefits of Poly-Feed™ pHast+Ca
Single product provides complete nutrition
Easy use and proven efficiency
Rapid and complete dissolution in water of any quality, even in hard water rich in carbonates
Enhances uptake of calcium by the plant
Concentrated solutions remain stable over time
pH of the solution is markedly acid
Enables lower application rates and minimizes losses of nutrients
Applications
Poly-Feed pHast + Ca is suitable for open field crops and for greenhouse crops in both soil and soilless media. It is specially recommended for crops and growth conditions where it is necessary to ensure adequate calcium supply.
In order to maintain the stability of the chelates contained in Poly-Feed™
pHast+Ca, the concentration of stock solution should not exceed 15% (w/v). Alternatively, the solution’s pH should be kept lower than 2.5.
Available formulae
Formula
N:K2O
N-NO3
N-NH4
N-NH2
EC
(0.1% soln.)
pH
(0.1% soln.)
14-5-32+5CaO+ME*
1:2
12.25
0.5
1.25
1.33
6.3
19-10-15+5CaO+ME*
1:1
11.1
4
3.9
1.43
5.4
* Content of micro elements depends on formula. See data sheets for detailed specification.
