I used Antler King Jolt (2 doses - 1 month apart) on my 4 small clover food plots and it looks like it has worked very well. All the plots are better than the previous 4-5 years. The clover leaves are very much larger than I have ever seen. I also sprayed a dose of the Antler King Clover Fuel in August with the same excellent results so far. Besides the liquid fertilizer, I also sprayed liquid lime 2 separate times this summer. My plan for 2020 is to spray 2-3 doses of liquid lime (May-June-July) and 3 doses of the Clover fuel (June-July-August). Attached a picture of one of the plots - not sure how it will look. I have some grasses but not as bad as in past years.
Antler King website or Sportsman Guide. I bought mine from Sportsman Guide as they had the cheaper price and I'm a member that gets further discounts. There are 2 liquid fertilizers - Antler King Jolt and Antler King Clover Fuel (recently a new product). I used both - 2 sprayings of Jolt and 1 spraying of Clover Fuel. To me, it looks like it has really worked. The clover leaves are double the size of anything I had in the past. I will be spraying 3-4 times next summer. I also use a liquid lime from Nature's Lawn and Garden Inc website -https://www.natureslawn.com/. Did 2 sprayings of liquid lime this past summer and will be doing 2-3 more next year.
Keystone sells one called NutraTender, (5-5-10) as well as some others. Chances are, you're paying a "wildlife" markup for the Antler King stuff. You can likely find the same thing through your local ag supplier, tractor supply, online dealers for significantly cheaper. If you read the Antler King labels, it will tell you what's in it. Jolt is 9-17-8, and $120 for 1 gallon. For example, here is a 3-18-18 for $85 SHIPPED. (clover doesn't need nitrogen) $35 difference per gallon is nothing to sneeze at. https://www.domyown.com/recover-rx-18-18-p-17612.html