Home What's New Message Board
BigPumpkins.com
Select Destination Site Search

Message Board

 
Fertilizing and Watering

Subject:  Elemental sulfur question

Fertilizing and Watering      Return to Board List

From

Location

Message

Date Posted

LJ

South Dakota

If my soil test calls for 9 lbs elemental sulfur.. If I applied 40 lbs of gypsum, do I subtract the sulfur in the gypsum from the recommended elemental sulfur, or is the gypsum sulfur different from the elemental sulfur? Also, what about ammonium sulfate? Thanks.

4/17/2020 9:08:08 AM

DJ SpudKin

Nampa

It depends on your soil lab. Western usually has separate recs for sulfate sulfur and elemental. The elemental is to bring the pH down. Check out Western Labs website. They have a tutorial section on elemental sulfur.

4/17/2020 10:18:53 AM

G. Kins

Catinatree, WA

I think sulfer can be quite high without hurting the plant steve daletas had his up around 700 ppm for his 2469. The ammonium part of ammonium sulfate would also lower your ph btw but the sulfate wouldnt. The chemistry of sulfer and sulfate is different so just add what they recommend dont swap one for the other.

4/17/2020 10:36:58 AM

cojoe

Colorado

Its for dropping PH so put the full nine lbs down. I'm guessing your ph is above seven. Ammonium sulfate will bring your ph down, gypsum wont.

4/17/2020 10:49:53 AM

Grower216

Where the PUMPKINS grow/My backyard

Gypsum has the sulphur in it just to even out the pH. If there was no sulphur, the gypsum would be basic, and the sulphur counteracts that.

4/18/2020 6:55:23 AM

LJ

South Dakota

Thanks alot people. I kinda thought the sulfer in the gypsum was to balance out the Ca. I'll go with the whole recommended amount. Hoping to get all worked in the next couple days.

4/20/2020 2:17:01 PM

Total Posts: 6 Current Server Time: 10/21/2020 6:22:54 PM
 
Fertilizing and Watering      Return to Board List
  Note: Sign In is required to reply or post messages.
 
Top of Page

Questions or comments? Send mail to Ken AT bigpumpkins.com.
Copyright © 1999-2020 BigPumpkins.com. All rights reserved.