How can I add calcium to soil?
user
There are three ways to add calcium to soil:

•   use lime, which contains calcium,

•   use gypsum, which contains calcium, or

•   use the nutrient calcium nitrate, which contains calcium.
assistant
Where can I get lime?
user
Lime is a raw material. You can either buy it as a dry powder, or as a wet slurry. It will be green, white or gray in color.
assistant
And I just put it over the dirt?  Or do I put it in a hole?
user
You can pour lime in a hole, or sprinkle it directly on the surface of the soil, but the liquid and dry forms will have to be mixed in first. Lime contains calcium, so adding lime to soil will increase the calcium content of your soil.
assistant
How can I add calcium to soil?
user
There are three ways to add calcium to soil:

•   use lime, which contains calcium,

•   use gypsum, which contains calcium, or

•   use the nutrient calcium nitrate, which contains calcium.
assistant
Where can I get lime?
user
Lime is a raw material. You can either buy it as a dry powder, or as a wet slurry. It will be green, white or gray in color.
assistant
And I just put it over the dirt?  Or do I put it in a hole?
user
I would recommend putting it in a hole about a foot in diameter.
assistant
How can I add calcium to soil?