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Agricultural Gypsum
Current Analysis PDF File
Fact Sheet
How to Read Analysis (Instructions for PDF Fact Sheets)
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Primary Values:

Adds sulfate and calicum to the soil in balanced proportions that will not significantly increase the soil pH.

Recommended uses:

  • Great for adding to soils in need of sulfur where a drop in pH is not desirable.
  • Good to add to soils needing both sulfur and calcium.
  • Ok to add to soils in need of calcium where an increase in pH is not desirable.
  • Wonderful facilitator for removal of excessive levels of sodium or magnesium.

Best Practices:

  • Use a soil test to determine if this gypsum (Calcium Sulfate) is the best amendment to use in your situation.
  • Carefully follow the recommendations made on your laboratory test to achieve the desired results.
  • Sulfate is water-soluble and as a consequence it will move through the soil very quickly in areas of high rainfall, under heavy irrigation practices, in sandy soils and in soils low in organic matter. Timing of application and other adjustments may need to be made too maximize value to the soil.
  • Sulfur and Calicum Source. Most often used as a sulfur source because it has no liming value. It is important to work with recommendations of your agronomist to determine just how much gypsum is needed for your situation.
  • Sodium/Magnesium Removal. Ask your agronomist to tell you how much gypsum to add, how deep to mix the gypsum, and how much good quality water you will need to apply to achieve the desired level of removal.

Specifications:

Feedstock:Made from new construction wallboard
Particle Size:1/8" minus
Sulfate (SO4)ranges:Sulfate = 47-51% / lbs. per ton = 940 to 1020 / lbs. per yard = 470 to 547
Calcium ranges:Calcium = 21-26% / lbs. per ton = 420 to 550 / lbs. per yard = 225 to 279
Other nutrients:Boron = 24 - 42 ppm
Sodium = +/- 0.02%
Iron = +/- 0.2%
Moisture:5%-25%
Bulk Density:Pounds per cubic yard As received - 1410 Dry weight - 1073
*As reported in past laboratory reports and not intended to be a guarantee of nutrients or their current availability. Most differences reported on laboratory tests are due to conditions beyond the control of Z-Best Products, (seasonal variations in weather and moisture conditions). See laboratory analysis summary sheet for more information.
 
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