how to fill hole in the soil?

I was constructing a pirka ( a wall made with stones) and i needed soil for the adobe , i used the soil from my land and i made a big hole in the land ( 3 X 4 meters an one meter in deep) , i was wondering , which is the best way to refill that hole?

Is there any strategy to generate new fertile soil and fill the hole? what do you recommend me?

Ronaldo Montoya : Traditional English Cob houses were sited on the land( as much as possible ) where good access to materials and water made the Build easier .

Often The excavation was turned into a stock pond ! - This was depending on your mind set , Making a solution out of the problem. Or Stacking Functions !

Best advice is don't jump into trying to find an immediate solution; live with it a while , besides several different types of ponds you may find that it could become

the center of an outdoor conversation pit or BBQ area with the addition of some drainage pipe ! ( or several dozen other things ! )


For the good of the craft ! Big AL

This is a very good question. There are many options but it is easier for us with experience to give an answer that is close to fitting your situation there are two things you can do.
(1) Go to the top of the page and click on My Profile. There fill in your location and other details about your homestead or plans. You can also make a signature line that can give more details about your projects.
(2) Whenever possible include a picture. It is true that it can often save a 1,000 words of trying to describe the situation. When someone posted pictures of a problem recently I could see in the pictures two things that could be possible solutions that were not apparent in the original post.
If you post pictures I will mark your question for additional attention.

Can you tell us roughly where you live and about the climate and soils there?

I'm guessing it's somewhat arid since you're constructing with Adobe?