So my problem is heavy clay soil. I am scratching the top with a set of ATV discs to put cereal grains in. Atleast this past year. I till the land, plant a mix. 1st year it does great, year two because the soil is very rich, you're fighting weeds more and more going on from year 2. I put my plots in a bit on the late side, usually either side of labor day in NY zone 5/6. I live a mile from the hudson river, so that help fend off late frost and brings spring in. Probably get 2-3 weeks extra planting time.
I have yet to try 2,4db. I have used clethodim in my plots, it does help some. But, you cant fight the carbon to nitrogen balance. You add nitrogen to the soil, it wants to be used by something.
IF you want to monocrop clover ther year after you plant it, dutch white clover could be a good route. I used to love it, because it would make a nice monocrop, but spreading seed in it and hoping it grows, dtuch does not play nice. A mix of legumes (n), broadleaf plants (phosphorus), and grasses (nitogren and potassium). That makes a balanced foodplot. Some guys on here are the no-till no-input type. Some places, the deer density is high and the foodplot sizes too small to work out that well. Also, often affordable hunting land is undesireble AG land. Those situations require inputs to get the soil quality to better place That's my hunting place. Sandy low nutrient soil, or old log landings when the carbon and potassium is very high, the pH low, and other nutrients get beat in the balance.
What kind of soil do you have, recent soil test? What equipment do you have to work with. Any soil issues, shallow top layer, certain bad weeds, flooding issues.