Age, nutrition and genetics are the trinity that combine to grow big bucks. Summer food plots in the South are absolutely critical to the nutrition of your deer herd. By adhering to the following guidelines for soil prep, seed selection, planting and protection, you will be successful at providing your deer herd the nutrition it needs during its most critical nutritional stress period. You will have to fight heat, drought, weeds and generally high deer densities, but in the end you will be rewarded with better deer and a better hunting experience in the fall.
The three main factors associated with successfully prepping soil for spring food plots are lime, fertilizer and a good seed bed. A proper soil test is needed to properly lime and fertilize according to the specific requirements of the species you intend to plant. Most counties in the South have either an extension agent or farm services office that can send your soils to the testing lab for about $8 per sample. In the South, we primarily have highly acidic soils that range in pH from 4-5.5. Unfortunately, most summer legumes thrive in the pH range of 6-7. This can usually be remedied by applying 1-2 tons of Aglime per acre. Fertilizer needs will vary greatly but almost always be required to grow productive spring food plots. Lime and fertilizer can be applied right before or immediately after plowing but prior to making the seed bed, and these nutrients need to be at the root level of the plant.
The seed bed is very critical for summertime plots because it is in this bed that your moisture will be held through the long dry summers. The best option for planting is mowing and poisoning your existing fall plots followed by no-till planting of the spring plots. For many hunters and landowners, no-till and row planters aren’t available, so plowing is the only way to prepare a seed bed. In most upland food plots, you should attempt to plow as deep as possible and do so at least a month before your intended planting date so that you can “bank” spring showers into your bed prior to planting. If you plow too late, your seed is at high risk of running out of important ground moisture at an age when it may not survive until the next rain. After plowing, use a drag or culti-packer to make a firm seed bed ready for planting. Plowing will inherently bring many weed seeds to the surface that will later compete with your food species. These weeds can be sprayed prior to planting or you can plant Round-up ready species that can be sprayed throughout the growing season. Most warm season plants require a soil temperature of 60 degrees Fahrenheit or higher to germinate and do not hold up well with a frost. Because of these two factors, I prefer to plant with a 60 percent chance or rain or greater after May 1 across much of the South. Some areas in the deep South can be planted in April with no problem or chance of frost but they should always be planted with impending rain.
Selecting the proper species to plant in a given food plot should be dependent on location, purpose, and size of your food plot. Planting an eighth acre of soybeans in a thick area with little sunlight and high deer densities will have you giving up on summer plots almost before you start. You need to allow the species to work for you in every way that it can. Some are fantastic in small plots in the shade and others simply need a lot of sun and larger areas to keep from being decimated by the hungry mouths of your herd. Keep in mind that some spring food plot species do not provide any added nutrition during the summer but are great for cover and early fall hunting plots.
These species are typically grains such as Grain Sorghum, Egyptian Wheat and Corn. The legumes are the highly nutritious and attractive species from the time they germinate until first frost. These legumes provide much needed protein and fiber to a deer’s diet and also fix nitrogen into the soil, which can aid in fall food plot success. My favorite warm season legumes are Eagle Seed Soybeans, Lablab and Aeschynomene. There are also many commercial blends that can also be successful, such as BioLogic’s Biomass All Legume and orginal Biomass as well as Tecomate’s Buck Beans, and Lablab Plus.
There are also many other blends available at local feed and seed stores, but a word of caution: Always read the bag and make sure you want everything in it to grow on your property. I once had a client “pick up his own seed” and later found out that the main ingredient in the blend was brown-top millet, currently our second-most invasive weed on the entire property. Millet is great for birds and excellent at controlling erosion, but it does not belong in a warm season deer food plot designed for nutrition as it will choke out almost anything else you plant.
I use the cereal grains in smaller acreage plots and as buffers, cover and travel corridors in larger plots. Any of them will work in these circumstances but remember that if you plant Round-Up-ready beans, and you’re mixing them with a cereal grain, make sure it also is Round-Up-ready. These cereal grains do not provide deer with summer nutrition, but they do provide shade, bedding, and early fall nutrition in the form of fats and carbohydrates. The height difference in these cereal grains as compared to the legumes is generally drastic, which creates an additional “edge” on the food plot that all types of wildlife can benefit from. Grain Sorghum and Egyptian Wheat are both better in drought conditions than corn and will generally hold seeds later into summer and early fall better since their seed is higher and out of the reach of squirrels and raccoons, both of which feast on early corn.