My soil is a fine silty loess soil with pyroclastic cobbles and boulders. I'm in the Northern Movahve Valley of Arizona, which is in an open rangeland area frequented by unattended cows. Consequently, the grasses have been eaten down to the bare dirt is some spots. I will eventually
fence off my 3.66 acres to better manage the livestock access to my land.
My problem is that the soil is very alkaline. I discovered this when I accidentally spilled some vinegar on the bare soil, and it fizzed!
I also had an accidental spillage of battery acid, and the soil immediately started fizzing when it came into contact with the battery acid.
What treatments do you recommend for this type of soil? Which sort of plants will grow in it?
The subsurface has a layer of caliche (about 3 feet down) that seems to have been metamorphosed by volcanic activity at some point in the distant past. In the process of installing my septic system, I learned that it is only about two to three feet thick.
My backhoe operator got a bit wild and crazy and left me a swath of bare dirt in several areas with only an inch or so of the fine silty loess material on top in places.
I did manage to build a system of soil
berms that capture the runoff of our infrequent, but intense rainstorms. I am in the process of landscaping the top of these berms to capture the rainwater that impacts the berms, but I have not yet begun replanting this area. I hope to re-introduce the
native grasses and other desert plants that once grew here in abundance before the area was overgrazed with the introduction of European
cattle in the 1800s.
I would like to hear your recommendations for incorporating some soil berms to connect the existing mounds of soil that surround the desert vegetation so that I can capture and store the rainwater
underground where it is accessible to the native grasses and other desert plants that I hope to establish in this highly alkaline soil. It appears to me that the bare rocky soil that exists between these mounds of soil that surround the creosote bushes and other low shrubs are the result of a combination of overgrazing, wind and water erosion.
I have not gotten around to performing a Ph test or any other soil tests, other than the percolation test required for installing the septic. I am supposed to plant grass in the area of the septic leach field to increase the evapotranspiration effects from the water leaving my septic tank.
Looking forward to responses on this forum!