Hello, I am new to this site and new to fertilizing. I am in Central Oklahoma and have about a 65 acre pasture that has not been treated with any fertilizer or weed killers in the past years. Half of it has been over grownwith sundflowers. I am wanting to get it back in shape this year. I would like to use granual fertilizer/week killer as I have a large spreader for my tractor. I have sent off a couple of soil samples but have not heard back yet. What is the best all round fertilizer ratio and suggestions for cleaning this up. Oh and there is some good bermuda grass mixed in with all the trash. Thanks for any suggestions