Toothpick - I do exactly like Bassin said. I have a clover field along a live creek and at the edge of the timber I have a mineral lick. I put approx 25 pounds in late January or February and add the balance of the bag in May. The usage seems to pretty well stop by mid to late July. I had a second lick out on the North 50 acres along a travel corridor but it had little pressure so I discontinued. I am just using 1 lick on the 100 acres and it always gets hit hard during the Spring until July when it really tapers off. I hope this answers your question.