15-3-25 Flowering Crop Special with Black Iron

Ideal for plants that thrive in low pH growing media

15

N

3

P2O5

25

K2O
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Peters Professional Peat-Lite 15-3-25 Flowering Crop Special is specifically designed for petunias and other high iron demanding plants. This unique formulation contains three chelated irons, including black iron—the most effective for growing ornamentals.

  • Can be used alone or rotated with a customizing component

  • Provides iron to plants over the widest pH range to encourage dense, compact growth

  • Fortified with iron HBED, DTPA, and EDTA

  • Elevated magnesium levels improve the calcium/magnesium ratio in hard water environments

  • Pure formulation - no filler substances

  • Effective for all water types

  • Contains NPK, magnesium and micronutrients

  • Developed for peat-based cultures (pot plants, bedding plants, and container nursery stock)

  • Exclusive M-77® with black iron chelating formula for fast, efficient nutrient uptake

Mix ratios (non-injector)

Fertilizer + Water (gallons) = Approx. N (ppm)
FertilizerWater (gallons)Approx. N (ppm)
1 tsp. (level)1232
1 tbsp. (level)2347
1 cup (level)25445

 

 

Product properties

Potential basicity33.6 lbs. calcium carbonate equivalent per ton
Conductivity (100 ppm N)0.98 mmhos/cm.
Maximum solubility3 lbs./gal.

 

 

Weight (oz.) of product needed to mix one gallon of concentrate

Target concentration (N/ppm) after dilutionEC (mmhos/cm.) of target feed rate after dilution
Injector ratios
1:151:1001:1281:2001:300
250.32.32.94.56.80.25
500.74.55.89.013.50.49
751.06.88.613.520.30.74
1001.49.011.518.027.00.98
1251.711.314.422.533.81.23
1502.013.517.327.040.51.47
1752.415.820.231.547.31.72
2002.718.023.036.0EMS1.96
2503.422.528.845.0EMS2.45
3004.127.034.6EMSEMS2.94
3504.731.540.3EMSEMS3.43
4005.436.046.1EMSEMS3.92
4506.140.5EMSEMSEMS4.41
5006.845.0EMSEMSEMS4.90
6008.1EMSEMSEMSEMS5.88
EMS = exceeds maximum solubility

 

 

Gallons of water needed to dissolve one 25 lb. bag of fertilizer

Target concentration (N/ppm) after dilution
EC (mmhos/cm.) of target feed rate after dilution
Injector ratios
1:151:1001:1281:2001:300
251185.2177.8138.988.959.30.25
50592.688.969.444.429.60.49
75395.159.346.329.619.80.74
100296.344.434.722.214.80.98
125237.035.627.817.811.91.23
150197.529.623.114.89.91.47
175169.325.419.812.78.51.72
200148.122.217.411.1EMS1.96
250118.517.813.98.9EMS2.45
30098.814.811.6EMSEMS2.94
35084.712.79.9EMSEMS3.43
40074.111.18.7EMSEMS3.92
45065.89.9EMSEMSEMS4.41
50059.38.9EMSEMSEMS4.90
60049.4EMSEMSEMSEMS5.88
EMS = exceeds maximum solubility

1
Consult rate tables printed on bag labels.
2
Verify product analysis and rate for plants in your production system (for assistance, contact your regional ICL Territory Manager or for testing call the ICL Lab at 877-467-8522).
3
Irrigation frequency and volume should be adjusted during the crop production cycle according to crop type, environmental conditions, and desired soluble salt levels.
4
A product trial is recommended before adopting a new fertilizer program or making full-scale changes to standard cultural practices (test several rates on representative plant types).
5
Store in a clean, cool, dry place.

Brand details

This product is part of the Peters Excel Peat-Lite portfolio

Specially formulated for peat-based cultures, the exclusive M-77® chelating package ensures fast, efficient nutrient uptake.

Learn more about Peters Excel Peat-Lite
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