• Facebook
712-433-0000 • Toll Free 877-474-SOIL
Soil Solutions LLC
  • About
  • Products
    • PRO CAL 40
    • NatureGro
    • Nutra Bio
    • NatureGro(C)
  • Services
    • Maximum Farming System
    • Field Application
  • Resources
    • Crop Response
      Case Studies
    • Reports & Links
    • From Our Desk
    • Newsletter
    • Blog
  • Contact
  • Menu Menu
You are here: Home1 / Blog2 / General3 / USDA Validates that Gypsum Improves Soil Health and Water Quality
Printer Friendly Printer Friendly

USDA Validates that Gypsum Improves Soil Health and Water Quality

September 3, 2015

IMG_1895New Conservation Standards have been approved by USDA/NRCS for gypsum in agricultural soils.  The benefits of gypsum use listed in the regulations are:

  1. Improve soil health by improving physical/chemical properties and increasing infiltration of the soil.
  2. Improve surface water quality by reducing dissolved phosphorus concentrations in surface runoff and subsurface drainage.
  3. Improve soil health by ameliorating subsoil aluminum toxicity.
  4. Improve water quality by reducing the potential for pathogens and other contaminants transport from areas of manure and bio-solids application.

These standards validate what we have been reporting and our customers have been seeing for numerous years.  Application rates that they recommend are dependent upon soil tests.  If soil test magnesium is greater than 13% they would suggest that gypsum applications 1 or 2 tons per acre will help improve soil physical conditions.  If CEC is greater than 15 they would recommend 2 tons/acre of gypsum.

For soils with high phosphorus levels or a high or very high P Index rating they recommend no less than 1 ton/acre be applied on the soil surface to reduce phosphorus runoff from fields.

To reduce phosphorus and pathogen loss from fields after a manure application, broadcast no less than 1 ton/acre of gypsum within 5 days after manure applications or prior to the next runoff event, whichever comes first.  Mixing gypsum with manure prior to application is also acceptable.

When exchangeable aluminum below a 12 inch soil depth is greater than 1 meq./100 grams of soil apply gypsum at rates recommended by ARS or land grant university.  My past experience with soils in the plains states where aluminum toxicity occurs the roots begin showing toxicity symptoms when the level of aluminum exceeds 20 ppm.  This would be equivalent to .22 meq/100 g of soil.  My recommendation for these soils would be to apply 1 ton of gypsum, but monitor the magnesium levels since magnesium deficiencies are also common in these soils.  Mixtures of lime and gypsum are often considered in these soils for best results.

Soil health will improve with gypsum applications and will continue to improve with time.  If subsurface drainage needs to be improved installation of drainage tile in combination with surface applications of gypsum greatly enhance soil health.

 

 

 

Share this entry
  • Share on Facebook
  • Share on X
  • Share on WhatsApp
  • Share on Pinterest
  • Share on LinkedIn
  • Share on Tumblr
  • Share on Reddit
  • Share by Mail
https://soilsolutions.net/wp-content/uploads/2015/09/IMG_1895.jpg 2448 3264 Andrea Meyer https://soilsolutions.net/wp-content/uploads/2019/07/logo.png Andrea Meyer2015-09-03 15:44:312015-09-03 15:44:31USDA Validates that Gypsum Improves Soil Health and Water Quality
Printer Friendly Printer Friendly

Recent Posts

  • Why is Gypsum Critically Important When Tiling Saline Sodic Soils?
  • Protect Your Plants—Get a Great Start To a High Yield Finish
  • Merry Christmas!
  • What Caused my Yield Variations in 2020?
  • Procidic Gives Yield Responses In Corn Even When Disease Presence is Low
Mascotte
Soil Solutions, LLC

2120 Pearl Street|Onawa, IA 51040|Phone: 712-433-0000|Toll Free: 877-474-SOIL| Email: andrea@soilsolutions.net

© 2025 Soil Solutions, LLC.  All Rights Reserved. | Privacy Policy

Website by: Heartland Internet Solutions

Plant Analysis Reveals Manganese and Boron ShortagesWhy Does The Analysis of my Alfalfa Test Lower Than Expected?
Scroll to top

This site uses cookies. By continuing to browse the site, you are agreeing to our use of cookies.

OKLearn More

Cookie and Privacy Settings



How we use cookies

We may request cookies to be set on your device. We use cookies to let us know when you visit our websites, how you interact with us, to enrich your user experience, and to customize your relationship with our website.

Click on the different category headings to find out more. You can also change some of your preferences. Note that blocking some types of cookies may impact your experience on our websites and the services we are able to offer.

Essential Website Cookies

These cookies are strictly necessary to provide you with services available through our website and to use some of its features.

Because these cookies are strictly necessary to deliver the website, refusing them will have impact how our site functions. You always can block or delete cookies by changing your browser settings and force blocking all cookies on this website. But this will always prompt you to accept/refuse cookies when revisiting our site.

We fully respect if you want to refuse cookies but to avoid asking you again and again kindly allow us to store a cookie for that. You are free to opt out any time or opt in for other cookies to get a better experience. If you refuse cookies we will remove all set cookies in our domain.

We provide you with a list of stored cookies on your computer in our domain so you can check what we stored. Due to security reasons we are not able to show or modify cookies from other domains. You can check these in your browser security settings.

Other external services

We also use different external services like Google Webfonts, Google Maps, and external Video providers. Since these providers may collect personal data like your IP address we allow you to block them here. Please be aware that this might heavily reduce the functionality and appearance of our site. Changes will take effect once you reload the page.

Google Webfont Settings:

Google Map Settings:

Google reCaptcha Settings:

Vimeo and Youtube video embeds:

Privacy Policy

You can read about our cookies and privacy settings in detail on our Privacy Policy Page.

Privacy Policy
Accept settingsHide notification only