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Home/Commercial Growing/Control-Release Fertilizers/Mastercote 13-13-13 4CTR

Mastercote 13-13-13 4CTR

Mastercote 13-13-13 4CTR control-release fertilizer
Mastercote 13-13-13 4CTR

Mastercote 13-13-13 4CTR is a well-balanced, control-release formula that delivers premium nutrition to plants over a 4 month period. Fertilizer can be used as a topdressing or incorporated directly into the growing medium.

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Guaranteed Analysis

13-13-13 4CTR Guaranteed Analysis

Total Nitrogen (N)
7.6% Ammoniacal Nitrogen
5.4% Nitrate Nitrogen
13%
Available Phosphate (P2O5)13%
Soluble Potash (K2O)13%
Total Sulfur (S)5.20%
Boron (B)0.03%
Copper (Cu)0.06%
Iron (Fe)0.20%
Manganese (Mn)0.06%
Molybdenum (Mo)0.01%
Zinc (Zn)0.06%

  • Plant nutrients derived from:  Ammonium nitrate, monoammonium phosphate, potassium nitrate, potassium sulfate, calcium phosphate, magnesium oxide, sodium borate, copper sulfate, iron EDTA, manganese sulfate, sodium molybdate and zinc sulfate.

Directions for Use

MASTERCOTE 13-13-13 should be applied according to the soil or growing medium conditions and specific requirements of the crop. 13-13-13 provides
the crops with nutrients over the specified release period. The application rate suggested is intended as a guideline based on average conditions. Increase application rate by 20% if the average soil temperature is 60°F. Decrease application rate by 20% if the average soil temperature exceeds 85°F. Leach the
growing medium prior to planting. Do not mix Mastercote with the growing medium prior to steam sterilization.

13-13-13 Temperature Effect on Rate of Release

Average Soil TemperatureLongevity (months)
60° F5
70° F4
80° F3
90° F2

13-13-13 Incorporation Rates

LowMediumHighSouth FloridaVolume or Area of Mix
2.5 oz4 oz6 oz7 ozPer cubic foot
4 lb7 lb10 lb12 lbPer cubic yard
2.5 kg4 kg6 kg7 kgPer cubic meter
8 lb12 lb18 lb21 lbPer 100 sq ft
0.4 kg0.6 kg0.9 kg1.2 kgPer sq meter

13-13-13 Topdressing Rates - Small Containers

Container SizeContainer/Cubic YardLowMediumHighSouth Florida
5" std. pot8002 g4 g6 g8 g
6" std. pot4503 g7 g10 g12 g
1 gallon3005 g11 g15 g25 g
2 gallon14013 g23 g32 g45 g
3 gallon8019 g40 g57 g75 g
5 gallon5030 g64 g90 g110 g
7 gallon3543 g90 g130 g160 g

13-13-13 Topdressing Rates - Large Containers

Container SizeSurface AreaLowMediumHighSouth Florida
10 gallon1.4 sq ft63 g110 g157 g195 g
15 gallon1.5 sq ft67 g120 g170 g210 g
20 gallon2.3 sq ft100 g180 g260 g320 g
25 gallon2.8 sq ft125 g220 g315 g400 g
45 gallon4.8 sq ft215 g380 g540 g670 g
Larger containersper sq ft45 g78 g112 g140 g

The above recommendations should be regarded as a general guide only. Before implementing these recommendations the fertilization program should be tested on a small scale.

Commercial Growing Products

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  • Products
    • Commercial Growing
      • Overview
      • Water-Soluble Fertilizers
      • Control-Release Fertilizers
    • Turf Care & Maintenance
      • Overview
      • Water-Soluble Fertilizers
      • Granular Fertilizers
      • Herbicides, Fungicides, & Insecticides
      • Bulk Nutrients
    • Home Growing
      • Overview
      • Tomato & Vegetable Formula
      • Flowering Plants Formula
  • Applications
    • Commercial Growing Applications
      • Overview
      • Greenhouse Stock
      • Nursery Stock
      • Hydroponics
      • Vegetables & Produce
      • Foliage Plants
    • Turf Care Applications
      • Overview
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      • Sports Fields
    • Home Growing Applications
      • Overview
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