When I was a kid, my grandfather had a farm, not too far from my city, I used to spend weekends at.
One day, we started downing small trees, and cutting them in pieces, about 4 feet long. Then, he dug 3 big holes in the side of the house (I used to joke they were tombs), and buried those tree pieces in them.
A year later, he planted grapes, where those "tombs" were. Those grapes grew like they were on steroids, and produced the best grapes I have ever tasted.
My point with this little story is: wood is food.
If you have less than perfect soil, you don't need to buy expensive (and, most times, nasty) fertilizer. You also don't need to start downing and burying trees. Go to your local lumber yard. Most times, they will have tons of sawdust and wood chips they will be glad to give you for free, or very cheap.Same if you have a carpentry shop nearby, or a furniture factory. Just mix it with your top soil, irrigate, if needed, and let it rot. You will be surprised how fast your land will transform into the best soil you've ever seen.

