Old Cobblers Farm™ Wicked Growth 16-10-13 Fertilizer – Balanced Nutrition
Product Overview
Description
Wicked Growth 16-10-13 Balanced Nutrition Fertilizer delivers elevated nitrogen with complete secondary nutrient support for heavy-feeding vegetables and perennial crops. Enhanced with sulfur (2%), calcium (7%), and magnesium (1%), this premium formula supports asparagus, corn, brassicas, and other demanding crops.
The 16-10-13 ratio provides the higher nitrogen levels that heavy-feeding crops require for maximum vegetative growth and yield, while maintaining strong phosphorus and potassium levels. The polymer-coated urea ensures extended nitrogen availability over 8-12 weeks.
Secondary nutrients address the complete nutritional profile premium crops require. Sulfur is essential for protein synthesis and flavor, calcium prevents physiological disorders, and magnesium powers chlorophyll production.
Highlights
• High nitrogen for heavy feeders
• Includes S, Ca, Mg secondary nutrients
• Polymer-coated for extended release
• Asparagus specialist formula
• Professional-grade complete nutrition
The Science Behind It
How It Works
This enhanced formula uses polymer-coated urea technology for controlled nitrogen release combined with immediately available phosphorus and potassium. The coating on urea granules regulates nitrogen availability over weeks rather than days, reducing volatilization losses and providing steadier feeding. Sulfur, calcium, and magnesium additions address secondary nutrient needs. This combination delivers both quick response and sustained nutrition for demanding crops.
The Science
Polymer-coated urea releases nitrogen as soil moisture penetrates the coating, creating diffusion-controlled nutrient availability. This mimics natural organic nitrogen cycling more closely than conventional urea. The sulfur component (2%) supports protein synthesis and chlorophyll formation as a component of amino acids cysteine and methionine. Calcium (7%) strengthens cell walls and supports cell division. Magnesium (1%) forms the central atom in chlorophyll molecules, directly impacting photosynthetic capacity.
Nutrients Available
16% Total Nitrogen (including slow-release) – Extended feeding for sustained growth. 10% Available Phosphate (P₂O₅) – Root and flower support. 13% Soluble Potash (K₂O) – Stress tolerance and fruit quality. 2% Sulfur – Protein synthesis and enzyme function. 7% Calcium – Cell wall strength. 1% Magnesium – Chlorophyll production and photosynthesis.
How to Apply
1-2 lbs/100 sq ft every 4-6 weeks. Severe deficiency: 2-3 lbs initially.
1
Action:
Survey garden bed and note deficiency symptoms. Map high-need zones.
Pro Tip:
Sandy areas and fruiting sections need more K than shaded areas.
Avoid:
Don't leave granules on surface in hot weather - damages plants.
2
Action:
Calculate 1-2 lbs per 100 sq ft. For 10x20 garden (200 sq ft), use 2-4 lbs.
Pro Tip:
Weigh fertilizer on kitchen scale. One cup 0-0-60 weighs ~0.5 lb.
Avoid:
Don't exceed 2 lbs per 100 sq ft per application. Split heavy doses.
3
Action
Broadcast granules evenly across soil surface. Work into top 2-3 inches with cultivator.
Pro Tip:
Sandy areas and fruiting sections need more K than shaded areas.
Avoid:
Don't spread on windy days - granules drift causing uneven application.
4
Action
Water thoroughly with 1-2 inches to dissolve granules and move K into root zone.
Pro Tip:
Incorporation prevents salt buildup and gets K to roots faster.
Avoid:
Don't leave granules on surface in hot weather - damages plants.
Key Benefits
Asparagus Excellence – The 16-10-13 ratio with added calcium and sulfur matches asparagus requirements for maximum spear production and crown health.
Extended Nitrogen Release – Polymer-coated urea provides sustained nitrogen over 8-12 weeks, reducing application frequency.
Complete Secondary Nutrition – Sulfur enhances protein and flavor, calcium prevents deficiency disorders, magnesium powers chlorophyll production.
Heavy Feeder Support – Elevated nitrogen meets the demands of corn, brassicas, leafy greens, and other crops requiring substantial nitrogen.
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