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Yard Mastery 16-0-0 Double Dark Fertilizer

6% Iron and Bio-Nite™

Yard Mastery 16-0-0 Double Dark Logo
New for 2021 ~ "Double Dark" blend will do just what the name implies: make your lawn double dark green. It's really that simple - green and more green.

Double Dark is meant for those of you who are inclined to apply fertilizer every 30 days. Most of Allyn's programs recommend an application of lawn fertilizer every 4-6 weeks or so. But there are those of you who apply every 30 days on the dot and some of you push it even closer together than that. This product is for you.

It will green up the lawn but won't flush it with too much growth.
Active Ingredient %
Nitrogen 16.00 %
Iron 6.00 %
Manganese 0.06 %
Copper 0.05 %
Zinc 0.05 %
Boron 0.02 %
Molybdenum 0.00 %
Other Ingredients 77.82 %
Available on Yard Mastery

$1.22 / lb
Buy now

Not Safe On
No not safe on treatments listed. Please, review the label or contact the merchant for more information.
Water Instructions
Application should be watered in within 48 hours with 1/4" of rainfall or irrigation.
Fertilizer & Nutrient Analysis
Broadcast Application
Label Rate:
3 lbs per 1,000 sqft
Fertilizer NPK Ratio:
16 - 0 - 0
Label Rate Nutrient Analysis:
Ingredient % Mass / Area
Nitrogen 16% 0.48 lbs / 1,000 sqft
Boron 0.02% 0.001 lbs / 1,000 sqft
Copper 0.05% 0.002 lbs / 1,000 sqft
Iron 6% 0.18 lbs / 1,000 sqft
Manganese 0.06% 0.002 lbs / 1,000 sqft
Zinc 0.05% 0.002 lbs / 1,000 sqft
Label Rate Cost Effectiveness:
Covers 15000 square feet
at a cost of
$3.67 per 1,000 sqft
Nutrient Mass:
Total Nutrient Cost Analysis:
Ingredient Total Mass Cost / Mass
Nitrogen 7.2 lbs $7.64 / lb
Boron 0.01 lbs $6110.00 / lb
Copper 0.02 lbs $2444.00 / lb
Iron 2.7 lbs $20.37 / lb
Manganese 0.03 lbs $2036.67 / lb
Zinc 0.02 lbs $2444.00 / lb
CertainLabel™

Yard Mastery 16-0-0 Double Dark Optimized Application Label Rate Calculator

Legend:
Control
Suppression
No Control
Broadcast Treatment:
1
Grass / Turf Types Safe
Annual Ryegrass
Bahiagrass
Bermudagrass
Buffalograss
Carpetgrass
Centipedegrass
Chewings Fescue
Colonial Bentgrass
Fine Fescue
Hard Fescue
Kentucky Bluegrass
Kikuyu Grass
Perennial Ryegrass
Red Fescue
Seaside Bentgrass
St. Augustinegrass
Tall Fescue
Zoysiagrass
1
Jump to CertainLabel™ Yard Mastery 16-0-0 Double Dark Label Rates & Calculator for these 18 turf types
Broadcast Treatment
Label Rate:
3 lbs per 1,000 sqft
Cost Effectiveness:
Covers 15000 square feet
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Label Rate:
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Cost Effectiveness:
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