Questions tagged [soil-amendment]

About modifying a soil's content.

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24
votes
4answers
22k views

Is it really important to give blueberry plants acidic soil?

I have two blueberry bushes which I planted at the end of the summer. Although I had read online that they prefer acidic soil, I didn't have the time to check the pH of our soil, and go out to buy ...
17
votes
1answer
11k views

Does a pine needle mulch make your soil acidic?

This article from Colorado State University states that alkaline soils resist change but several years of heavy pine needle applications would create a somewhat more acid soil. This article ...
13
votes
1answer
2k views

Why is it bad to mix layers of soil if you do it once at the start?

In the answer @bstpierre gave to this question on ammending soil he mentioned mixing layers of soil during double digging is a bad idea. I was wondering why is this? I imagine mixing the layers at ...
20
votes
2answers
3k views

My garden soil is devoid of nutrients, how should I improve it this winter?

The garden area in my yard has soil that even the weeds don't particularly love to grow in during the summer. They will make a half hearted attempt in the winter, but it definitely isn't as lush as ...
15
votes
4answers
19k views

How do I improve drainage vertically through clayey soil?

I live on a hill where the soil has lots of clay. My back garden has been terraced with small (1m) retaining walls. The net result is that we have several lawns / gardens with the following ...
16
votes
1answer
44k views

Why it is bad to add sand to soil?

Motivation: this comment from stormy: And DO NOT ADD SAND to garden soil!!! ARRRGGHH. Again, when one takes clay soil, gravel, lime, gypsum, water and then ROTATE what does one get? Concrete. Sand ...
16
votes
3answers
717 views

How should I improve my extremely clayey soil?

I live in North Carolina and the soil here has an extremely high clay content. I have used soil conditioner that consists of composted pine fines to amend the soil. It does an excellent job of ...
4
votes
1answer
424 views

Returning a garden paved for 30 years with packed clay below, back to lawn

My new rear garden has had concrete slab paving for decades, resting on heavily packed and deep London Clay soil and a small amount of odd rubble. The paved area measures about 6x7m. The soil under ...
14
votes
5answers
50k views

What techniques can be used to manually sieve stones from the soil efficiently?

After our house was built there is quite a bit of hardfill (river pebbles) mixed up with the topsoil around the section (approx 180sq.m.). We want to level the section, and loosen the top layer of ...
20
votes
10answers
9k views

Amending clay soil on a large scale

What would be the best way to amend clay soil on half an acre? We want to grow our usual garden plants like tomatoes, cucumbers and such but the soil on the land we just bought is small rocks and clay....
13
votes
3answers
3k views

Is charcoal good for use as a soil amendment?

I came across an article the other day on wikipedia about Terra preta. Has anyone used charcoal like this to enhance sandy soil, like we have in Florida? Does this really work, and what is the best ...
6
votes
1answer
308 views

Will oyster mushrooms eat cooking oil?

I know oysters will eat engine oil, but cooking oil is a different type of chemical so is there any use in adding it to the substrate for growing mycelium?
14
votes
3answers
7k views

Placing eggshells on top of potted plants?

In general, is there any benefit (growth, soil quality, etc) if I place eggshells on top of my potted plants? My mother often does it to provide it organic material. She's not much of a scientist. I ...
6
votes
2answers
333 views

Should I do a soil test before or after amending soil?

I want to plant blackberries, raspberries, and a vegetable garden in the heavy clay soil in my backyard. So, I plan to heavily amend it by spreading 3" expanded shale and 6" of compost and working ...
4
votes
3answers
3k views

how to increase Phosphorous, Potassium and Calcium in lawn soil

I recently used my local extension service to do a soil test. I did this before I fertilized for the spring so I got a post-winter reading on the soil. They said my lawn was very low in Phosphorous, ...
4
votes
2answers
409 views

How to amend clay soil to propagate trees for bare root distribution?

I intend to propagate trees and distribute them in bare root form after they grow for 1-3 years. Lots of good info on that process is available at https://depts.washington.edu/propplnt/Chapters/Bare%...
2
votes
4answers
4k views

Is Perlite safe to use in the home or will it cause health issues?

I'm new to indoor farming and I was wondering: Is it safe to use Perlite in the soil or should I stick to more natural organic materials like pumice or gritty gravel?