Calcium Products - Items filtered by date: April 2011
Calcium Product 98G


Calcium Products - Items filtered by date: April 2011

Ammonium-based fertilizer will change the pH of a soil

From the Ventura County Star, GRANGEVILLE, Idaho (AP)

"Crop soils in north-central Idaho are becoming more acidic, possibly because of the repeated use of ammonium-based fertilizers, scientists say."

"Basically you're adding calcium carbonate to the soil," Sandlund said. The process is effective, but it's expensive, time-consuming and difficult, "usually involving tons per acre."

Read more:  -

At CPI we are not against Ammonium sulfate (AMS), in many cases it can be a great fertilizer. However if you have soils that are already acid, and/or have a low buffering capacity. It may be best to choose another form of Nitrogen and sulfur that is less acidic. 

For every pound of Ammonium sulfate applied, you need 5 lbs of pure calcium carbonate to offset the acidity it causes. 

Urea only needs 1.8 lbs of pure calcium carbonate to offset the acidity it causes. Combine that with a product like SuperCal SO4 to get your sulfur and you have nitrogen and sulfur blend that is priced less initially and causes less soil acidity.

If you insists on using the higher priced ammonium sulfate of low pH soils or low buffered soils make sure you apply 5 lbs of SuperCal 98G when you apply your AMS. This will keep you pH where you need it, and it more effective than waiting for a problem, is not expensive, nor time consuming and is really easy.


Calcium Products Acquires New Warehouse Space


For Immediate Release
(Gilmore City/Fort Dodge, Iowa)  Calcium Products, Inc. an employee owned company based in Gilmore City with a plant in Fort Dodge has purchased a warehouse in Aplington, Iowa.  Calcium Products, Inc. intends to use the space to store their increasing brands of bagged soil amendment products.  This acquisition will more than double their bag storage space allowing for faster delivery to the expanding customer base.
“We are excited to have acquired this additional location and warehouse space”, states Deb Zeman, Vice President of Calcium Products. “We expect to grow into the new location over time and we’ll also have 35,000 sq. feet available for lease.”  In addition to the new acquisition Zeman says Calcium Products, Inc. will be hiring one or two employees to man the Aplington facility.   
Calcium Products, Inc. currently operates two production facilities. At the Fort Dodge manufacturing plant, SuperCal SO4 pelletized gypsum is produced. At the Gilmore City plant they manufacture SuperCal 98G pelletized limestone, HumaCal, and a variety of other products. Bagging operations are conducted at both facilities. 
Calcium Products Inc. is recognized as one of the leading specialists in the development of advanced techniques for processing super fine powders. They have developed the industry's most efficient operation for converting pure limestone, gypsum, humates, and other materials into practical, easy to use and highly effective granular products. Their products are engineered to solve the problems usually associated with processed pelletized powders, specifically, the lack of particle and pellet uniformity, excessive dust, and slow pellet breakdown.
Anyone interested in applying for positions at Calcium Products can contact Deb Zeman at 800-255-8196 or by email at debbie(at) Deb is also the contact for additional information regarding lease arrangements.  You can learn more about Calcium Products, Inc. at their website at



Anhydrite vs Dyhydrite--is all gypsum the same?


This article is reprinted from, the Professional Turf Division of Calcium Products. It is writen by Brian Milam.

As a turf professional it is very important to understand what exactly gypsum is, what the differences are between Anhydrite and Dyhydrite forms of gypsum and then the benefits for using the correct form of gypsum.

First of all, let us explore the 2 main types of gypsum. There is anhydrite gypsum and there is dyhydrite gypsum. Both forms of gypsum are a Calcium Sulfate (CaSO4) but only Dyhydrite forms of gypsum seem to be the most effective. Why might this be the case?

Before I explain why a dyhydrite is more effective let’s try and understand what gypsum looks like to begin with. Gypsum is a naturally occurring mineral that is in a crystalline form that contains Calcium and Sulfur in sulfate form.  In an anhydrite form there is no water associated within the crystals, just Ca and S. In the dyhydrite forms there are 2 molecules of water attached to the Ca and S and it is these water molecules that make all the difference in the world.

Anhydrite Gypsum --> CaSo4

Dyhydrite Gypsum --> CaSo4 – 2H2O

Dyhydrite is more effective because it is more water soluble and the more soluble a mineral can be the more nutrient uptake can occur with the plant.  When gypsum becomes soluble in water the calcium separates from the sulfur and the faster that separation can occur, the more nutrients can become available to the plants. In anhydrite forms of gypsum this separation happens at a much slower pace and because of how slow it takes the less effective the product is a reducing compaction layers, leaching potential and sodium remediation.

Benefits of Gypsum use in the turf grass industry:

  • Effective in leaching of harmful salts and impurities from the root zone
  • Enhances soil structure
  • Reduces the layers of compaction
  • Increases Water Infiltration Rates
  • Increases amount of water available to the plant
  • Provides pockets in the soil to allow for deeper root growth and expansion
  • Provides an organic source of calcium which creates a stronger, healthier plant
  • Will not affect pH of the soil

In conclusion, there are many different labels under which gypsum is being sold and marketed. The only way to ensure you are going to be getting an effective product is to source one out that is derived from CaSO4-2H20.  It is also very important when looking at where the gypsum is derived from you look at the purity of the materials. Excellent grade materials will have a purity exceeding 92%. 


Dyhydrite Gypsum sources


SmartPhone Apps for Farmers

Smartphones are growing in use by many farmers. Our team has scoured the web looking for helpful smartohone applications. Let us know if we missed any and we’ll add them to the list!
Business / Office / News
By The Farm Progress Companies. Available for both Android and iPhone platforms.
Cost: Free
Farm Futures now offers the agricultural industry’s first management-oriented smartphone application that provides the most current and insightful market analysis, enhanced user-customized live CBOT/CME market quotes, ag news and audio content – and more – all updated throughout each business day.
The Farm Futures app puts the key ag information producers and anyone in the ag industry needs each day to stay current.
• Top industry news and views
• Market insight from ag’s leading market analysts
• Preset CBOT/CME market quotes overview
• User-customized commodities portfolio
• Audio podcasts from Farm Futures editors
• Blogs and commentary from Farm Futures’ analysts and economists
By Sandhills Publishing. Available for Android platform.
Cost: Free
Featuring thousands of listings from hundreds of dealers through North America, TractorHouse for Android lets you drill down instantly to the category, make, and model you need.
Full-color photos, complete descriptions, and location maps for each machine are included. TractorHouse finds your location and first displays the for-sale listings closest to you. Find your equipment, contact the seller, and make your best deal.
By Telvent DTN, Inc. For iphone platform
Cost: Free
DTN/The Progressive Farmer: Agriculture News, Markets and Weather. Get the agriculture industry’s most powerful content app specifically designed for the iPad. This app meets your information needs with access to award-winning agriculture news, commodity market data, and industry-specific weather intelligence. 
Agronomy / Soils / Crops
By SDSU AgBio Communications. Available for Android platform.
Cost: Free
This iPhone application was assembled to provide growers and crop managers in South Dakota and nearby states with easy-to-use and handy diagnostic information for a number of major or potentially problematic soybean diseases. It is intended to provide a starting point for management decisions. All management decisions remain the responsibility of the individual grower or crop manager.
By Smith Farm Apps. Available for iPhone platform
Cost: $2.99
An innovative Application providing the professional agriculture/farming community real time useful calculations for the planting of corn from specific inputs resulting in the correct spacing of the corn being planted. Inputs such as population desired, cost per acre, seed counts and spacing in inches or in a metric format are achi
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