fixing salt buildup in soil?

beckyed(z6MA)May 26, 2009

I've discovered that a planting bed next to my driveway is full of de-icing salt. Guess the previous residents here really socked it to the driveway. Can I remove the salt by running a lot of water into this bed? How long should I run the water? What about adding gypsum? The bed is small--about 2.5 feet by 6 feet. Thanks for your help, Becky

Thank you for reporting this comment. Undo

Fixing soil salinity can be very difficult. If you've got fairly good drainage, adding gypsum and flushing should help, but it may take time. I think you need to add the water all at once for it to be effective because you're really trying to flush the salt out, not just dilute it. If you water, but not enough to flush, you could be adding more salt (drinking and irrigation water has small amounts of salt so irrigating at normal levels will slowly build up salt).

    Bookmark   May 26, 2009 at 10:00AM
Thank you for reporting this comment. Undo
terran(zone10/Sunset20 CA)

The bed is small enough that you could excavate the soil out to a depth of two feet and come up with just a bit over one cubic yard of material. That isn't very much; of course, it depends on how much you like to dig.

It isn't necessary to dispose of the dirt if you do not want. Reuse most of it in a 50:50 ratio with finished compost to buffer the salt.


    Bookmark   June 6, 2009 at 6:48PM
Thank you for reporting this comment. Undo

Gypsum will aid in cleaning the salt buildup from that soil. Gypsum is used in arid areas of the country (sodic soils) for that reason, although there are different kinds of salts to contend with there. Flooding the area, several times, could wash that sodium chloride out of the soil, eventually but the gypsum would be faster.

    Bookmark   June 7, 2009 at 7:10AM
Thank you for reporting this comment. Undo
nygardener(z6 New York)

De-icing salt is often calcium chloride. Will gypsum also work for this?

    Bookmark   June 9, 2009 at 3:32AM
Thank you for reporting this comment. Undo

I've not seen any research that says it will but my experience does indicate applying gypsum even where calcium chloride was used helped.

    Bookmark   June 9, 2009 at 7:54AM
Thank you for reporting this comment. Undo
terran(zone10/Sunset20 CA)

I read this last night on pages 155, 156 in Our Future Reborn by Dr. Teruo Higa.

"Another benefit Egypt hoped to gain from EM (Effective Microorganisms) was a remedy to soil salinity, which had dealt a fatal blow to desert agriculture. ... Amazingly, in some places where EM has been used, soil previously damaged by salinity has been restored and the salt crusts that accumulated on the surface have vanished along with the large white spots where salt permeated the soil."



If you decide to use EM-1 it can be what they call "activated" to make 22 times the amount purchased. It is easy to do; I've done it.

"EM-1® Microbial Inoculant products can be used directly from the bottle or they are grown one time for economical purposes. This "growing" process is called Activation (or extended). The normal activation process is to take one part EM-1® and make 22 times the amount through a simple fermentation process, similar to making beer or wine. ... (T)his simple process normally takes anywhere from 5-10 days to complete when done properly."


Here is a link that might be useful: EM1® Multi-use Size

    Bookmark   June 13, 2009 at 3:00PM
Sign Up to comment
More Discussions
Berm and Top Soil/Tilling?
I plan on creating a low berm - about 6 inches tall...
Bob Sislow
over-abundance of wood ashes
We have a wood stove that has been working overtime...
Remove old mulch? Red fungus!
We desperately need new mulch in our backyard landscaping....
How can I get my soil to hold water longer?
I live in Augusta and I just bought a bunch of Bricko's...
Seeking help/tips for a raised bed that's out of control with weeds...
Hi there, I have a raised bed garden. 3 years ago,...
© 2015 Houzz Inc. Houzz® The new way to design your home™