I used to live near a Langbeinite supply, accustomed to locate it. I might place the stones in a hearth pit for a long whilst, then use fireplace log tongs to drop them inside a bucket of h2o. I at last begun using this...Seems like holy Grail for stubborn N https://thc-a-flower34699.bloggin-ads.com/56954001/full-spectrum-hemp-an-overview