Forums
Search

Baking Soda In the Soil?

My mother was wondering if possibly you could add baking soda to soil to lower its pH level? Any one know? If not baking soda what is the best thing to use? Thanks everyone.

Davonna
 
I have not heard of trying baking soda to balance the pH, but I have heard (Captain Compost) talk about how adding compost to your soil will help with your pH.
 
Like (0 likes)
I have soil with high PH also, but I am using organic matter to try and get the levels down. This is going to mean lots of compost and mulching with chopped leaves. I'm not expecting instant results, but I do figure to see the levels dropping some by later this year. In the meantime, the garden grows fine, so I'm not in any hurry. Just trying to head off future problems.

I'd be interested to see the replies that come back concerning the use of baking soda, as I certainly have not heard of that technique.
 
- - - - - - - - - - - - - - - - - Zone 3 NW Wisconsin: Left the city in '98, hardly been back since!
Like (0 likes)
For what it's worth, a couple of years ago I was told by a gentleman at Arm and Hammer that baking soda actually neutralizes the soil so that nothing will grow in it. He recommended it as a weed killer along flower beds or in the cracks of cement where weeds tend to grow.

I've used it for a couple of years now and it will kill grass and weeds within about a week. It keeps the area weed-free for about 2 months, then another application is necessary. Weeds like quack grass that spread by underground runners don't seem to be too affected though out in an open area. In cracks in the sidewalk it seems to kill everything. I just sprinkle it on the top and either water it in or let the rain do it for me. Works great for me - hope that helps answer your questions about what it might do to the soils ph.
 
Like (0 likes)
[u]WARNING:[/u] Do not use baking soda to raise soil pH or any vinegars to lower soil pH. It's a waste of time and money. These products are not strong enough to do any permanent soil acidifying or alkalining of soil. Plus too much sodium from baking soda is deadly to beneficial soil organisms!

Baking soda is mainly used in sustainable farming in tea forms as a plant foliage fungicide.

Vinegars are used mainly straight as a strong natural herbicide. Diluted and used sparingly (few tblsp per gallon of water or compost tea recipes), apple cider vinegar is great as a foliar acidic fertilizer, or as an ingredient for acidity in various compost tea recipes, for better phosphorus availability on flowering/fruiting plant foliages. Plus diluted vinegar in teas has some fungicidal powers too. Natural fruit vinegars can contain up to 30 nutrients in them.

For soil pH, nothing lasts longer or better, to chemically react with your native soil minerals, metals, organic matter, and soil microbes, than liming materials (high calcium carbonate materials) or powdered sulfur products.

Liming agents like lime or dolomitic limestone can raise pH up to 8.3, while wood ashes can raise soil pH up to 9.0!

Sulfur products can lower soil pH down to or below 5.0.

Of course the best soil pH range for all rich organic soils is between 6.0 to 7.0, for all the plant types or varieties that you can grow.

The beneficial microbes from rich compost and some good aerobic compost teas will buffer and balance the available nutrients and perfect local root soil pH to best suit your plant's needs later, after your native soil pH is within this balanced 6-7 range.
 
Like (0 likes)
Wow! Your knowledge and guidance awes me. (truthfully, I have benefitted from many of the regulars, so thanks everyone)

Only writing to say thanks! I try to read up on the forum here at o.g. at least once a week. (the rest of the time I'm weeding. And weeding. And weeding.

(totally new at gardening and undertook waaaayyyyy too much at once but determined to make this work. Somehow. I actually disappear under the squash and zucc leaves when I'm trying to collect string beans!)

But anyway, thanx!
 
Like (0 likes)
quote:
Originally posted by duhvonna:
My mother was wondering if possibly you could add baking soda to soil to lower its pH level? Any one know? If not baking soda what is the best thing to use? Thanks everyone.

Davonna


Davonna,

In short. You can use Baking Soda as a Base to raise your soils pH by mixing it with your fertilizer. Get your 5 gallon buck or mixing container, add your fertilizer to filtered water, and let it sit over night with an aireator stone. Come back the next morning and take a pH sample and add 1 T. of soda per day to balance. Usually most plants prefer a 7.0 pH. Remember, find out your target pH for your specific plants and you will open the doors to your plants full potential.
 
Like (0 likes)
Baking Soda, Sodium Bicarbonate, is an alkaline substance with a pH of abnout 8.2. Baking Soda will not lower a soils pH.
As a general rule of thumb what is available to organic gardeners to lower a soils pH is sulfur, but how much to use depends on what your soils pH is, how much that pH might need to be lowered, the type of soil you have, how much organic matter is in that soil.
If your soil needs a pH adjustment the best source of information about doing that would be your state universities Cooperative Extension Service. They will be able to tell you what your soils pH is, after a soil test, and what and how much material is needed to lower that pH. As a general rule of thumb it takes about 1 pound of sulfur per one hundred squaer feet of garden to lower the ph 1 point.
 

The sign of a good gardener is not a green thumb, it is brown knees.

West central Michigan along the lakeshore.

Like (0 likes)
SOM, welcome. Tell us something about yourself and your gardens. I'm wondering why are you interested in this post from 2004? Did you have a similar problem?
 

Abigail, all 9 kids grown and 16 little gardeners: what a harvest!

Zone 7a, Far Rockaway, New York

Like (0 likes)
 
Post Reply
 
 
 


OGFooter image OGFooter image OGFooter image OGFooter image
OGFooter image OGFooter image OGFooter image OGFooter image OGFooter image
OGFooter image OGFooter image OGFooter image OGFooter image OGFooter image
OGFooter image OGFooter image OGFooter image
OGFooter image OGFooter image OGFooter image OGFooter image
OGFooter image OGFooter image
OGFooter image OGFooter image
OGFooter image OGFooter image OGFooter image
OGFooter image OGFooter image OGFooter image
OGFooter image OGFooter image
OGFooter image OGFooter image OGFooter image OGFooter image OGFooter image
OGFooter image OGFooter image OGFooter image OGFooter image
OGFooter image OGFooter image OGFooter image
OGFooter image OGFooter image
OGFooter image OGFooter image OGFooter image OGFooter image
OGFooter image OGFooter image
OGFooter image OGFooter image OGFooter image OGFooter image OGFooter image OGFooter image OGFooter image OGFooter image