---
title: BROCHURE - Verde-Cal Enhanced Lime
canonical: https://fernland.com.au/documents/513/
dateModified: 2026-07-12 07:54:21
summary: Technical Sheet
type: tech_sheet
---

# BROCHURE - Verde-Cal Enhanced Lime

> Technical Sheet

# VERDE-CAL
## Enhanced Calcitic Limestone

With thCa™ Organic Complexing Technology

Navigates You Toward BALANCED Soil Nutrition

[Image: A compass overlaid on a golf course green with a golf ball near the hole.]

* Provides available calcium
* Improves soil structure (flocculation and infiltration)
* Supplies optimal calcium levels to the soil and plant
* Quicker soil and plant response with lower rates than traditional calcium applications

thCa™ is a trademark of AQUA-AID, Inc.

AQUA-AID SOLUTIONS
INNOVATIVE TECHNOLOGIES
CUSTOMIZED SOLUTIONS

***

# VERDE-CAL
## Enhanced Calcitic Limestone

Calcitic limestone combined with thCa™, an organic complexing agent, converts insoluble calcium compounds to soluble and available calcium. This allows for greater delivery of calcium to the exchange sites on the soil colloid. VERDE-CAL contains Aqua-Aid penetrant which synergizes with thCa, providing uniform nutrient movement into the entire soil profile.

### FEATURES AND BENEFITS OF USING VERDE-CAL
* 500 pounds will yield results equivalent to 1 ton of typical lime
* Reduces hydrogen, sodium, and chlorine in the plant and soil
* Improves germination, stimulates root growth, and enhances microbial activity
* Increases essential nutrient absorption and translocation
* Improves soil structure (flocculation, water infiltration)
* Supplies optimal calcium levels to plant cells to strengthen the plant’s resistance to disease
* Balances the Ca/N ratio in the plant
* Quicker response at lower rates
* Requires 1/4 the rate of standard lime per application.

### APPLICATION RECOMMENDATIONS
To maintain optimum pH and growing conditions, apply VERDE-CAL at 5 pounds per 1,000 ft² or 220 pounds per acre (250 kg/ha) at least twice per growing season or as needed. Soil test recommendations should be used to determine liming needs.

To adjust pH, apply VERDE-CAL at 10 pounds per 1,000 ft² or 435 pounds per acre (500 kg/ha). In most soils this will raise the soil pH up to one full point. Retest and if needed, reapply at the pH adjustment rate.

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### CATION COMPARISON
**Basic Cations**

[Diagram: Icons representing Ca, Mg, K, Na, H with their atomic weights]

| Cation | Atomic Weight |
| :--- | :--- |
| Ca | 40 |
| Mg | 24 |
| K | 39 |
| Na | 23 |
| H | 1 |

The soil colloid has degrees of affinity for various basic cations. This bonding increases with larger atomic weight, ion size and amount of charge.

The percentage saturation for each of the cations will usually be within the following ranges for optimum performance:

| Cation | Range |
| :--- | :--- |
| Calcium (Ca) | 65 - 70 % |
| Magnesium (Mg) | 10 - 18 % |
| Potassium (K) | 3 - 6 % |
| Sodium (Na) | 1 - 2 % |
| Hydrogen (H) | 10 - 15 % |

The process of cationic exchange begins when water and basic cations (Ca, Mg, K, Na) meet the soil colloid. Based on the soil colloid’s degree of cation affinity, Calcium (Ca) will attach to the soil colloid releasing the smaller cations. The released cations (Mg++, Na+, K+, H+) are solubilized in the soil solution and made available to the plant or removed from the soil profile. As hydrogen is released from the soil colloid into the soil solution, acidity is reduced and pH is raised.

### THE CATIONIC EXCHANGE COMPLEX
**The mixture of Water, Soil, Colloids and Cations**

[Diagram: A large circle labeled "SOIL COLLOID Negatively Charged" surrounded by various cations (Ca, Mg, K, Na, H)]

Exchangeable cations are those absorbed on the colloid. Water soluble cations are those ionized in the soil solution. CEC is determined by the number of negative sights on the colloids.

* A & L Plains Laboratories, Inc.

AQUA-AID SOLUTIONS
5484 S. Old Carriage Road
Rocky Mount, NC 27803
800.394.1551 •
INNOVATIVE TECHNOLOGIES
CUSTOMIZED SOLUTIONS