Priming (soil science)

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In soil science , the priming effect is understood to mean the change in the degradation or mineralization process of soil organic matter after the addition of substrates. The degradation process can be increased (positive priming effect) by adding an easily degradable substrate (e.g. glucose ). One then speaks of a cometabolic effect . The addition of an inhibiting substance can also reduce degradation (negative priming effect).

In agricultural practice, sulfuric acid ammonia is usually used for the priming effect . Ammonium fertilizers stimulate the supply of nitrogen from the humus pool.

Individual evidence

  1. Form of fertilizer and priming effect. Chamber of Agriculture Austria, newsletter of November 16, 2017, p. 9 (PDF).