Welcome, Gayle.
I have similar soil in my desert area of California. Very sandy and water drains right past the roots before it can do much good.
I do have a question, are you just
growing vegetable plots or are you farming the whole 36 acres?
The answer either way is still the same. You will need a lot of soil amendments deep enough to retain moisture through the whole root system and maybe a little deeper than too. It usually takes a lot of adding and digging. Mine have been years in the making and need constant additions yearly.
So all of the mulching material you can lay your hands on and work into each plot will help.
Sometimes it is easy to get the material. Are there any smaller dairies nearby? They will sometimes give you manure for free. I could get it dumped here by the huge double truckloads but getting it into place and worked in is the hard part.
But if you keep adding any and nearly all natural materials your vegetables should improve over the years as the water retention does.
Before adding any lime or other things like, have your soil tested to see what may be lacking besides water.