Mine is simalar to haystacks. One bag dical, two bagstrace mineral salt, one bag evaporated salt, and abag of pelleted dolomiticlime. Put out in February, topped off with a bag trace mineral salt in late summer. I read somewhere that the salt leaches faster than the dical. The salt doesnt really help the deer, but it does all the attracting. I dont think deer would eat the dical(calcium and phosphorus) or lime(cheaper form of calcium,a littlemagnesium) alone.

Makes enough for the 4-5 mineral sites. The dical at the feed store went from $14 to $28 this spring. You can still get240 lbs of mineral mixfor $50, not bad.

It is my first year trying the lime, so far the deer still coming as they did before, the extra calcium may or may not help. Iwill tell you this fall! Also if your area has a good mix of cutover, hardwoods, and ag land, the usefullness of mineral sites has been questioned. I figure it cant hurt, and it make a awesome spot to get pics of your bucks inlate summer, they WILL be there.