Can you patent an organic fertilizer mixture?

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Question by Les R: Can you patent an organic fertilizer mixture?
I am developing an organic soil fertilizer and would like to patent the final product. I know there are hundreds of articles on how to mix blood meal, bone meal, cottonseed meal and the like to come up with an organic soil mix. However, I am adding other products such as beneficial fungi and micro nutrients to the mix that, as best I can tell nobody else it. I am primarily interested in protecting the addition of the fungi and micro nutrients if I can. Is this legally possible?

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