SR 65 by Redmond Agriculture one product that does it all. It is the perfect combination of Redmond's mineral salts and Redmond's bentonite clay, and it can be used both as a soil amendment and as a supplement for livestock. Free of chemical processing. Harvested and packaged direct from nature. Check-out what the manufacturer says about this product:
SR 65 FOR SOIL HEALTH
Increases soil electrical conductivity (EC)
Contains 60+ trace minerals in crystalline form
Improves taste and palatability of plants
Provides crucial minerals for photosynthesis, nitrogen utilization, and other plant systems
Improves soil's ability to store and release water and nutrients
Stimulates soil enzymes, nourishes microbe environment
SR 65 FOR ANIMALS HEALTH
Improves palatability (tastes better than commercial heavy mineral mixes)
Replenishes needed electrolytes that reduce heat stress
Provides 60+ trace minerals to improve overall health (reproductive, immune, digestive, circulatory health, and more)
Binds to harmful toxins found in feed, forage, or silage
Promotes digestive and rumen health
Increases feed efficiency
Instructions: 
Typical dry application: with a broadcast spreader set at 30ft wide spread pattern, spread 200lb to 300lb per acre (bulk density is about 75lb per cubic ft.)
Typical foliar application: stir and let sit the day before application - use the liquid off the top of the mixture so that the sediment does not clog the sprayer; apply up to 4 times per growing season 
Typical Livestock Supplement Recommendation: offer free choice -or- to feed in a beef and dairy cattle total mixed ration: provide 10oz per head per day