Soil Factors Key to 3,4-Dimethylpyrazole Phosphate (DMPP) Efficacy: EC and SOC Dominate over Biotic Influences.

ABSTRACT: Nitrification inhibitors like 3,4-dimethylpyrazole phosphate (DMPP) are crucial in agriculture to reduce nitrogen losses. However, the efficacy of DMPP varies in different soils. This microcosm incubation study with six soils was conducted to elucidate how soil abiotic factors (physicochemical properties) and biotic factors (nitrogen-cycling microbial abundance and diversity) influence the performance of DMPP. The DMPP efficacy was evaluated through the ammonium-N retention rate (NH₄⁺_RA), inhibition rate of net nitrification rate (NNR_IR), and reduction rate of N₂O emissions (N₂O_ERR). The results showed that DMPP had significantly different effects on mineral nitrogen conversion and N₂O emissions from different soils. NH₄<

SUBMITTER: Guan T 

PROVIDER: S-EPMC11433728 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature