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Johnathan Green Mag-I-Cal Calcium Fertilizer
For Lawns in Acidic Soil
Jonathan Green’s Mag-I-Cal® for Lawns in Acidic Soil contains calcium carbonate in a completely soluble form that is immediately available to adjust soil pH upwards. Poor soil is often the problem in growing a great lawn and calcium is vital to many grass plant functions.
Lawns thrive in soil with pH levels between 6.2 and 7.0. When the pH level of the soil is below this range grass becomes light green, weeds persist, and fertilizer nutrients are not fully absorbed. Mag-I-Cal® Plus also contains humates to stimulate soil microbial life. When soil chemistry and biology are balanced, nutrients from lawn foods are not wasted and the grass will thrive.
| Active Ingredient | % |
|---|
| Calcium | 35.00 % |
| Humic Acid | 2.00 % |
| Polyhydroxycarboxylic Acid | 2.00 % |
| Other Ingredients | 61.00 % |
Available on Amazon
Safe On
Click on a grass type below to see safe application rates:
Annual Ryegrass, Bahiagrass, Bentgrass, Bermudagrass, Buffalograss, Carpetgrass, Centipedegrass, Chewings Fescue, Colonial Bentgrass, Fine Fescue, Hard Fescue, Kentucky Bluegrass, Kikuyu Grass, Perennial Ryegrass, Red Fescue, St. Augustinegrass, Tall Fescue, and Zoysiagrass
Not Safe On
No not safe on treatments listed. Please, review the label or contact the merchant for more information.
Fertilizer & Nutrient Analysis
Broadcast Application
per
Label Rate:
3.6 lbs per 1,000 sqft
Label Rate Nutrient Analysis:
| Ingredient | % | Mass / Area |
|---|---|---|
| Calcium | 35% | 1.26 lbs / 1,000 sqft |
| Humic Acid | 2% | 0.07 lbs / 1,000 sqft |
| Polyhydroxycarboxylic Acid | 2% | 0.07 lbs / 1,000 sqft |
Label Rate Cost Effectiveness:
Covers 15000 square feet
at a cost of
$3.69 per 1,000 sqft
at a cost of
$3.69 per 1,000 sqft
Nutrient Mass:
Total Nutrient Cost Analysis:
| Ingredient | Total Mass | Cost / Mass |
|---|---|---|
| Calcium | 18.9 lbs | $2.93 / lb |
| Humic Acid | 1.08 lbs | $51.20 / lb |
| Polyhydroxycarboxylic Acid | 1.08 lbs | $51.20 / lb |
CertainLabel™
Johnathan Green Mag-I-Cal Calcium Optimized Application Label Rate Calculator
Legend:
Control
Suppression
No Control
Broadcast Treatment:
per
1
| Grass / Turf Types | Safe |
|---|---|
| Annual Ryegrass |
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| Bahiagrass |
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| Bentgrass |
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| Bermudagrass |
|
| Buffalograss |
|
| Carpetgrass |
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| Centipedegrass |
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| Chewings Fescue |
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| Colonial Bentgrass |
|
| Fine Fescue |
|
| Hard Fescue |
|
| Kentucky Bluegrass |
|
| Kikuyu Grass |
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| Perennial Ryegrass |
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| Red Fescue |
|
| St. Augustinegrass |
|
| Tall Fescue |
|
| Zoysiagrass |
|
1
Jump to
CertainLabel™ Johnathan Green Mag-I-Cal Calcium Label Rates & Calculator
for
these 18 turf types
Broadcast Treatment
per
Label Rate:
3.6 lbs per 1,000 sqft
Cost Effectiveness:
Covers 15000 square feet
at a cost of
$3.69 per 1,000 sqft
at a cost of
$3.69 per 1,000 sqft