Agronomy
I’m trying to develop a spot treatment for high ph spots using a blend of AMS and elemental sulfur. Initial treatment I plan to use is 400# AMS 50# sulfur. Anyone have experience with anything similar? What results could I expect?
15
Long term fix: gypsum and tile. Even this is going to take a look of time. You need to let the gypsum open up the soil and allow the salts to wash out.
Short term: sulfuric acid or elemental sulfur. You have to be very careful with this because you can wreck ground just as easy. I would stay with elemental.
Mid of the road: lots and lots and lots of feed lot manure. Spread it out there so thick...
It varies some field to field but 25-30 gallons per acre per depending on acid purity. Per point of soil ph. I.E. 30 gallons should take you from a 8.0 to a 7.0 ph
**************** MT.
How much sulfuric acid would it take to go from 8.4 ph to 7.9 PH per acre?
2
Depends entirely on purity but $2-5
About how much does a gallon of sulfuric acid cost?
I would look at running as much AMS you can handle as well as Oats in the spring before the crop. Oats are very acidic and help reduce ph and combat IDC well
3
Much of our farm is high ph (8+) high salt high calcium white dirt. My two bits is as much elemental sulfur as you can afford. Or if you want results right now and have access, use sulfuric acid. We have seen ph drop from 8.5 to 5.5 in the top 6 inches of soil in less then a month with high rates.
2
Depends on what you’re trying to get to. But 25-30 gallons per full ph point
what rate sulfuric acid would it take to reduce 8.0 ph soil
It all depends on what is causing the rose in pH. For instance if its carbonates then you will need alot more sulfur. But if its a magnesium or sodium problem then it requires less and maybe some calcium to dilute it down
2
You’re going to need a bit more then that depending on soil type. Look at Agvise’s website. They had a plot with up to 10k lbs of elemental sulfur per acre, it marginally helped. Banded fertilizer should help, but how much is to much in a band?
Soil is approx 7.9-8.4. Hilltops and cut spots from flood irrigation. Thanks for the links.
Good question on lowering soil pH. Because of the high cost cost associated with applying the amount of sulfur and/or AMS needed to bring down your pH , there's very little production ag information or research available on a large scale. Most of the information in lowering pH in crop production is limited to higher value horticultural crops. I don't think you mentioned what your soil pH is, but b...