I think us food plotters sometimes make things harder for ourselves. Over my 45 years of planting food plots for deer, I have gone balls to the wall planting a wide variety of both cool season and warm season plants - brassicas, alfalfa, corn, beans, peas, all kinds of clover, milo, sunflowers, wheat, rye, oats - and more. I would mow, spray, fertilize - and had some fantastic looking plots. Now I have durana clover plots with wheat seeded into them each fall. I dont spray unless the plots are over come with johnson grass or honey locust. I dont mow except for right before fall wheat planting. I dont fertilize my deer plots. I cant tell one difference in the use of my plots by deer. My clover actually persists longer in our 100 degree heat if it is shaded by some weeds. I have been doing this for years.
Now, my duck and dove plots are a totally different story. You have to produce seed. Deer plots are so easy a caveman can do it compared to dove and duck.