Ben Zumeta wrote:I have used oyster shell instead of perlite/vermiculite with some success. Pumice also adds minerals as well as air/drainage to soils. Sharp river sand is also a good source of minerals and soil drainage. Geoff Lawton's suggested potting mix of 2/3 river sand to 1/3 compost has worked as well as expensive potting soil (Roots organics) for starting tomatoes. I agree that was a ripoff on Amazon, as I have found azomite for $18 for same weight, and its a local reputable supplier.
Jennifer Lowery wrote:I have 6 raised beds, all are similar composure. I've only had one season (fall crop) with four of them.. added two new beds this spring. Would it be good enough to sample just one of the beds or perhaps mix all 6 together and sample that? I can't afford to sample all 6 raised beds as the local extension suggests. They are only 4' x 4' beds.
Jennifer Lowery wrote: I hear some people say the microbes can access the minerals and provide them to the plant. Another guy says they can't be accessed and it is a quarry yard waste product cleverly marketed and is a gimmick and not worth it.
Jennifer Lowery wrote: I have no idea what kind of farming supply stores there are in Tulsa, OK. I dont' know the names of the chains etc.. I am totally clueless.
Minerals from the sea are the other best way to put minerals into a soil, through either kelp or unrefined sea salt such as Sea-90 mentioned in a post above.
Ben Zumeta wrote:Anyone have experience and advice using azomite or other mineral sources as a free choice supplement for chickens or other livestock? I have read or seen both Mark Shepherd and Geoff Lawton use livestock as the vector for soil remineralization, but have never done so with raw ingredients myself. Instead I have fed them plants from soils i have attempted to improve with compost teas, passive fertigation from the birds’ runoff, and hugelkulture. Wondering if anyone has opinions about which spoke of the nutrient/mineral wheel you like to tinker with and why?