3,4-Dimethylpyrazole phosphate (DMPP) is a new
nitrification inhibitor with highly favourable
properties. It has undergone thorough toxicology and
ecotoxicology tests and application-technology
experiments, and has been shown to have several
distinct advantages compared to the currently used
nitrification inhibitors. Application rates of 0.5–1.5
kg ha–1 are sufficient to achieve optimal
nitrification inhibition. DMPP can significantly reduce
NO3– leaching, without being liable to leaching
itself. DMPP may reduce N2O emission, apparently
without a negative effect on CH4 oxidation of the soil.
The use of DMPP-containing fertilizers can improve
yield. This offers the possibility of saving mineral
fertilizer N, reducing the number of N-application
rounds, and obtaining higher crop yields with current
fertilizer-N rates.
DMPP Nitrification inhibitor Nitrogen losses
3,4-Dimethylpyrazole phosphate Nitrogen-use efficiency
Electronic Publication
NPK Fertilizer
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