Rock dust is used in organic agriculture to replenish minerals that have been removed from the soils when growing and removing vegetables and fruit. I tend to favor the addition of compost to our vegetable gardens since our soils are so low in organic matter and its derivatives.
Bob Morris
Bob Morris is a horticulture expert living in Las Vegas and professor emeritus for the University of Nevada. Visit his blog at xtremehorticulture.blogspot.com. Send questions to Extremehort@aol.com.
