You could use it if the nutrients it provides is needed by your lawn. Per the product label for Southern Ag Essential Minor Elements: LAWNS & TURFGRASS: use 1/4 - 1/2 lb. (1/2 - 1 cups) per 100 sq. ft. or 2 - 5 lbs. per 1000 sq. ft. with a spreader for even coverage. Be sure foliage is dry before application, then wash off or water in as soon as possible to avoid injury. Sweep material off of all driveways, sidewalks, and masonry surfaces before applying water. Repeat application when needed for outstanding color and vigor. Do not apply more than 4 times per year.
When applying Southern Ag Essential Minor Elements make sure soil temps are not below freezing or over 90 degrees.