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(For the week of August 16, 2010)
Fertilizing Forages Can Provide Deer Food
by James L. Cummins
Most people think that during the summer there is an ample supply of browse for deer to eat. Many people think that since the sweetgums, hickories and oaks are green again, deer will be healthy. Everything that is green is not food for deer and may not meet a deer’s daily nutritional needs.
Deer are similar to people in the manner in which they feed. There are certain foods that we love to eat, those that we will eat and those that we would eat only if we were starving. The trees above are in the last category – just good enough to fill them up. If you hunt in an area that shows a lot of browsing on these trees, your herd is probably in need of management.
Several foods that fit into the middle choice category are American beautyberry, dogwood, elm, maple and magnolia. These species provide moderate nutrition but your deer herd will have a hard time maintaining proper nutrition on these foods.
One of the reasons these low and moderate foods become a main ingredient in deer diets is due to overbrowsing on first choice foods. A reduction in the number of animals of the deer herd is usually needed when this type of overbrowsing occurs.
There are many desirable foods for deer. These include honeysuckle, yellow jasmine, greenbriar and blackberry.
If you’ve read many articles about food plots or if you farm or like gardening, you may be aware of the nutrient deficiencies in soils in Mississippi. Calcium, and more importantly, phosphorus, are the primary elements for proper antler growth and are both generally low in our soils. Soil tests are an inexpensive method to determine nutrient needs. Applications of essential nutrients can produce a hidden food plot that only you and the deer are aware of. Fertilized vegetation, such as the first choice items described above, grows more vigorously, are more palatable and will be visited more.
However, with fertilizer, more is not always better. One nutrient that is often recommended for food plots is lime. You can and should apply lime to planted and native foods so the fertilizer will work properly. Again, a soil test will help.
You will often see a benefit of better native vegetation growth on the edge of food plots due to the extra sunlight hitting their edges. Direct sunlight is the key to good forage production. With that in mind, you should try to grow your vegetation in areas that are more open, such as, roadsides, right-of-ways and newly thinned plantations. A little fertilizer in these spots will increase plant growth and provide the nutrition required by deer.