AGRICULTURE

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SOIL HEALTH

We know that all farmers are concerned about the environment and generating enough food production to feed the world. You also want healthy soils, healthy crops, and, let’s face it, a healthy ROI! ...

ORGANIC FARMING

The organic produce market in the US grew to over $50B in 2019 and $75B worldwide. There is clearly a market for organic produce, grain, meat and milk. In addition to produce there is a growing demand for organically ...

WATER IN FARMING

Agriculture currently uses roughly 70% of all freshwater withdrawals in the world today; primarily due to irrigation. By 2030 the United Nations estimates ½ of the world’s population will live in high water-stress locales ...

QUALITY GYPSUM MATTERS

Not all Calcium Sulfate is the same. There is Dihydrate (Ca2SO4 +2H2O) and Anhydrite (Ca2SO4) Calcium Sulfate. The addition of the 2 naturally occurring water molecules in Calcium Sulfate ...

NRCS FARMING

Farmers today are expected to feed an exponentially growing number of people across the world. They are expected to do so with fewer resources and more scrutiny as concerns over climate change and the environment drive change ...

INTERNATIONAL

Agriculture the world over is in crisis. Tasked with feeding a population 50% larger than today by 2050 with less land and an increasing call for change in how that food is produced while battling the effects of climate change. According to the United Nations ...

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Soluble vs Insoluble Calcium Sulfate Dihydrate

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  • I am being told that there is already a lot of  calcium in my soil.  Why should I apply more?
    • Not all calcium is soluble.  Calcium Carbonate – Limestone -, for example, is not soluble.  As a result, this insoluble calcium is not available to the plant’s roots – it cannot be absorbed by the plant –  and, therefore, cannot provide the vital nutrient of calcium to the plant.
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  • If you are requesting a soil analysis, request a test for active or soluble or extractable calcium.  Without extractable calcium your plants/crops will not grow as they should.  The insoluble calcium is not providing any benefits to your plant/crop.
    • Both gypsum (Calcium Sulfate Dihydrate) and anhydrite (Calcium Sulfate) have the same solubility of 0.205 grams per 100 grams water (2019 CRC Handbook of Chemistry and Physics). This has also been verified by many field trials by soil scientists, agronomists, and western farmers. The solubility of 0.205 grams per 100 grams water equates to: 0.205 grams/100 grams water = 0.0171 pounds per gallon = 5,575 pounds per acre foot water.  Therefore, the maximum solubility of gypsum or anhydrite in one acre foot water (325,851 gallons) is 5,575 pounds.
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    • Both gypsum (Calcium Sulfate Dihydrate) and anhydrite (Calcium Sulfate) have the same solubility of 0.205 grams per 100 grams water (2019 CRC Handbook of Chemistry and Physics). This has also been verified by many field trials by soil scientists, agronomists, and western farmers. The solubility of 0.205 grams per 100 grams water equates to: 0.205 grams/100 grams water = 0.0171 pounds per gallon = 5,575 pounds per acre foot water.  Therefore, the maximum solubility of gypsum or anhydrite in one acre foot water (325,851 gallons) is 5,575 pounds.
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  • Limestone (calcium carbonate) is 150 times less soluble than gypsum and effectively insoluble.  This means it provides no direct benefits to the plant, although Limestone is very necessary in acidic soils, and should never be used if soil pH is above 6.4.
  • EcoGEM Soil Enhancer Ag Grade is a dihydrate with small particle size and will provide your soil with extractable, soluble Calcium without impacting your pH. .
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