This is what I do, but I have extremely poor soils to start with. At the same time, your weeds have to be controlled before planting so maybe a similar crop rotation will work for you....if you have not corrected your potential weed problems:
A typical new food plot I have installed has had very similar beginnings and has followed some pretty simple steps. Many new plots have started in May. In mid-May the local snow melt has just about completely dissipated and the fields are in acceptable working conditions. The site is cleared in some manner, either by the FEL on my tractor, light bulldozer work, or a combination of both. When the field is “level”, a minimum of 4 tons of lime per acre is then applied due to initial ph levels between 4.1 and 5.0. Typically, the field will sit until the first of June when our frosts and freezes have subsided and then buckwheat is broadcast on the field. The majority of the time the seeds are not cultipacked, but buckwheat has proven to germinate well with adequate moisture. After six to eight weeks weeds are actually a welcome sight within the field and the new plot is sprayed for the first time to control weed growth. Then, at the appropriate time for the region, annual rye is then broadcast on the field. The new plot is then enjoyed by both deer and hunters for fall through early winter, and will stay green and productive through early spring. About the time the rye is reaching a foot or more in mid spring there begins a second round of various weeds, including bracken fern. Another shot of herbicide is used at this time, and the field again begins the buckwheat phase. By late summer the field can be sprayed a 3rd time within a year, after 3 soil building crops of buckwheat and rye. Soil tests at this time have shown to be dramatically improved and it is at this time that the new food plot is ready for a “premium” planting, including a combination of annuals with a perennial base that will be maintained on a rotational basis with a life of two years or more if desired.
Also, try not to think along the lines of "this will be my first attempt". Instead, think, this will be my first food plot, I will do it correctly, and can't wait to see the results. Except for the most non-typical weather circumstances or bad advice, failure shouldn't be of the process.
If your soils are already good, you can spray mid-spring, then again after 4-5 weeks, and finally again after another 4-5 weeks at which time you will have mostly soil exposed and your field will be ready for a good brassica/clover blend when you can see moisture in the forecast. If there is a dry period in late summer, you can wait until around Labor Day in your area, and plant a combination of oats/rye/clover and enjoy!
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