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What effect does anhydrous ammonia (or urea) have on soil micro-organisms?

April 26, 2017ammonia anhydrous micro-organisms soil urea

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What effect does anhydrous ammonia (or urea) have on soil micro-organisms?

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Immediately after fertilization, high concentrations of ammonia temporarily inhibit soil microbes in the fertilizer retention zone. Bacteria are sensitive to ammonia and are affected by this to a greater extent than fungi. Over time, ammonia concentrations gradually decline as the ammonia adheres to soil particles or moves with water away from the application site. As ammonia concentrations decrease, soil microbes repopulate the affected area.