After chewing Margaret out for not looking at the differrences in concentrations in Nicotine Sulfate, I find I am just a guilty. I have used manure and compost for so long, and most of my friends do the same that I had forgotten about the chemical only group. To you My Apoligies. To those that use compost and manure, be aware that full strength Mirical grow can cause problems. For would be manure users that don't like the "Ode-de-Colonge-De-Pony" or the "Aromatic Essence of Bovine Feces" or fighting black flies and mosquitoes while unloading and spreading. Get your stuff as soon as the frost is starting to come out of the ground and till it in. OR between first frost and first freeze. The odor is minimal and no bugs to deal with. Byron