Calcite Calcium کلسیم

Calcite Calcium is produced from high Calcium Carbonate Limestone quarried from underground mines. The particle size, purity and crystal structure of the mineral provide a unique slow release mechanism to predictably provide continuous release of Calcium over time. Calcium helps to build the cell wall structure of the plant. 

Greensmiths recommends that a soil test be utilized in determining the proper use, rates and frequency of applications. If no soil test is available, Calcite Calcium may be applied at rates of 5 to 10 pounds per one thousand square feet followed by a soil test. 

Greensmiths warrants that the product conforms to its chemical description and is reasonably fit for the purpose stated on the label when used in accordance with directions under normal conditions of use, but neither this warranty of merchantability or fitness for a particular purpose express or implied, extends to the use, storage or handling of this product contrary to label instruction or under abnormal conditions, or under conditions not reasonably foreseeable to seller, and buyer assumes the risk of such use.  

GUARANTEED ANALYSIS

Calcium.................................(Ca)..................38.8%
Calcium Carbonate.............(CaCo3)..............96.9%
Magnesium..........................(Mg).................. .37%

Magnesium Carbonate.......(MgCo3)................1.3%

Calcium Carbonate Equivalence.....................96.0%

Moisture Content.........................1.0%

Effective Neutralizing Power..............60.7%

Internal Surface Area in Calcite Calcium

The solubility of calcium carbonate is affected by the purity of the calcium and the crystal structure as well as the fineness of grind. Very fine ground calcium carbonate raises pH very quickly. Dr. Albrecht studied calcium function in the soil and determined that powdered calcium raised the pH excessively and leached readily. Greensmiths Calcite Calcium is a pharmaceutical or food grade calcium that is ground to the particle size that Dr. Albrecht found most effective. 

Greensmiths Calcite Calcium is a long term slow release calcium that supplies the calcium without excessively raising the pH of the soil solution. 

Golf greens normally have a very low cation exchange capacity (CEC). The CEC is determined on soil test by adding the millequivalents of calcium, magnesium, sodium, and potassium. Greensmiths Calcite Calcium can be used to raise the CEC of the soil or soil solution.

How to calculate Cation Exchange Capacity from a soil test. 

Values in part per million from standard soil test

 Divide Calcium by 200

Divide Magnesium by 120

Divide Potassium by 390

Divide Sodium by 230

Add values then divide the individual values by the CEC to get the % of the CEC or % base saturation.  

If your values are reported in pounds per acre double the divisor ( i.e. calcium 400)

If you are using a saturation paste extract and your values are milligrams per liter drop a zero from ppm (i.e. calcium 20) 

Why Raise the Cation Exchange Capacity? 

When the CEC is very low, as in a USGA green, it requires very small amounts of another cation to alter the balance. Hydrogen, for example can increase quickly and drop the pH. An application of ammonium fertilizer can alter the base saturation percentage. Low levels of sodium in parts per million can have a high percentage of base saturation. 

Example 1

CEC of 2 

75% Calcium=300ppm

10% Magnesium 24ppm

5% Potassium=39ppm

10% Sodium=46ppm 

Therefore on a soil test where we would like the % of base saturation sodium to be less than 2% it only required 46ppm sodium to equal 10% 

Example 2 

CEC of 6 

75% Ca=900 ppm

10% Mg=72ppm

5%   K =117ppm

10%NA=138ppm 

The Salinity Test or Saturated Paste Extract should be used for maximum accuracy. The extracting solutions used by the laboratory can overstate calcium and magnesium that have varying solubility in the soil.