RE: Increasing your turkey populations?
Contact the NWTF or any NWTF chapters in your area and ask. I do know the NWTF chapter in my area of Wisconsin did offer seed to be planted to improve habitat.
Contact your local county DNR ask the same question and /or ask the regional biologist.
I would think either above would have ideas and or methods to help you manange your property.
How is the water supply on your lease?
I do think feeders is a good idea.
Plant trees to help improve roost areas.
JW