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Home/Commercial Growing/Control-Release Fertilizers/Mastercote 18-6-12 +Minors 8CTR

Mastercote 18-6-12 +Minors 8CTR

Mastercote 18-6-12 +Minors 8CTR Mastercote control-release
Mastercote 18-6-12 +Minors 8CTR

Mastercote 18-6-12 8CTR +Minors delivers premium nutrition and minor nutrients to nursery and greenhouse stock for up to 8months. Fertilizer can be used as a topdressing or incorporated directly into the growing medium.

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Guaranteed Analysis

18-6-12 +Minors 8CTR Guaranteed Analysis

Total Nitrogen (N)
10.1% Nitrate Nitrogen
7.9% Ammoniacal Nitrogen
18%
Available Phosphate (P2O5)6%
Soluble Potash (K2O)12%
Total Sulfur (S)
2.3% Combined Sulfur (S)
2.3%
Boron (B)0.025%
Iron (Fe)
.33% Chelated Iron (Fe)
0.33%
Manganese (Mn)
.06% Water Soluble Manganese (Mn)
0.06%
Molybdenum (Mo)0.007%
Zinc (Zn)
.06% Water Soluble Zinc (Zn)
0.06%

  • Plant nutrients derived from: Polymer-coated ammonium nitrate, ammonium phosphate, potassium nitrate, sulfate of potash, calcium phosphate, magnesium oxide, sodium borate, iron EDTA, manganese sulfate, sodium molybdate and zinc sulfate.
  • Crops high in Molybdenum are toxic to ruminants

*The nitrogen, phosphate, potash, magnesium, sulfur, boron, iron, manganese, molybdenum and zinc in this product have been coated to provide 18% coated slow release nitrogen (N), 6% coated slow release available phosphate (P2O5), 12% coated slow release soluble potash (K2O), 1.1% coated controlled release magnesium (Mg), 2.1% coated slow release sulfur (S), 0.023% coated slow release boron (B), 0.30% coated slow release iron (Fe), 0.05% coated slow release manganese (Mn), 0.006% coated

Directions for Use

MASTERCOTE 18-6-12 +Minors 8CTR should be applied according to the soil or growing medium conditions and specific requirements of the crop. 18-6-12 +Minors 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.

18-6-12 +Minors 8CTR Temperature Effect on Rate of Release

Average Soil TemperatureLongevity (months)
60° F9
70° F8
80° F7
90° F6

18-6-12 +Minors 8CTR Incorporation Rates

LowMediumHighSouth FloridaVolume or Area of Mix
3.5 oz5.2 oz7 oz9.5 ozPer cubic foot
6 lb9 lb12 lb16 lbPer cubic yard
3.5 kg5.2 kg7 kg9.5 kgPer cubic meter
1116 lb21 lb29 lbPer 100 sq ft
0.5 kg0.8 kg1.1 kg1.4 kgPer sq meter

18-6-12 +Minors 8CTR Topdressing Rates - Small Containers

Container SizeContainer/Cubic YardLowMediumHighSouth Florida
5" std. pot8003 g5 g7 g9 g
6" std. pot4505 g9 g12 g14 g
1 gallon3008 g14 g18 g22 g
2 gallon14017 g30 g40 g45 g
3 gallon8020 g50 g70 g90 g
5 gallon5045 g80 g110 g140 g
7 gallon3565 g110 g155 g175 g

18-6-12 +Minors 8CTR Topdressing Rates - Large Containers

Container SizeSurface AreaLowMediumHighSouth Florida
10 gallon1.4 sq ft95 g140 g200 g225 g
15 gallon1.5 sq ft100 g150 g215 g250 g
20 gallon2.3 sq ft155 g230 g330 g375 g
25 gallon2.8 sq ft190 g280 g400 g450 g
45 gallon4.8 sq ft320 g480 g680 g700 g
Larger containersper sq ft68 g100 g143 g160 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.

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