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South Dakota

My soil test recommends 1.1 lbs/1000 sq ft of Sulfate. Are they talking about Ammonium Sulfate? What is the most common amendment for adding "Sulfate"? It also calls for 5 lbs/1000 of Elemental Sulfur. Are these two things similar or totally different? Will post link to my Grower Diary when the pic of the test gets published.

4/13/2019 2:08:10 PM

Colorado

Many amendments have a sulfate form.Dont use ammonium sulfate for sulfate unless you need that much nitrogen which you likely dont. Gypsum calcium sulfate is a safer way to put down sulfate for most soils.

4/13/2019 4:21:08 PM

Grittyville, WA

Sounds like they want you to acidify your soil based on the advice to add elemental sulfer. Ammonium is an acidic form of notrogen. So it may help. Thats a reasonable amount. They are different but what they have in common is they are both going to add sulfer and acidify your soil.

4/13/2019 5:25:39 PM

Grittyville, WA

What is notrogen.... Dumb phone or dumb user.

4/13/2019 5:26:41 PM

Grittyville, WA

Nitrogen.

4/13/2019 9:16:39 PM

Colorado

Elemental sulfur is recommended for lowering your ph. It is not in sulfate form. Bacteria in your soil convert elemental S to sulfuric acid(slowly over time).That sulfur will get further reduced to sulfate- then it will be available to plant. Its a mobile element and will wash out of your soil.The sulfate is a separate recommendation because the plant needs it earlier in the season than the elemental will be available through bacterial action.

4/13/2019 11:55:18 PM

Corryton, TN

Re-read the bold print on your recommendations just below Potash on the second page. Your lime is 2.7%. Utilizing ammonium sulfate at least in part will get you what you need depending on the formulation of product used.

4/14/2019 9:21:10 AM

South Dakota

Thank you everyone. My questions have been answered. Happy growing.

4/14/2019 3:02:34 PM