FAQ: Organic Fertilizers
What impact does soil temperature have on organic fertilizers?
Because organic fertilizers work in unison with the microbial life in the soil, most organic fertilizers work more effectively when the ground temperature is above 55° F, which allows those organisms to be active. Below that ground temperature, the biological processes in the soil may be sluggish and the nutrients are, in a sense, "dormant" in the soil.
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