The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 924, P. 171627 - 171627

Published: March 11, 2024

This study aimed to investigate the effect of soil pH change, and nitrogen amendment on ammonia oxidiser abundance comammox Nitrospira community composition. The experimental design used mesocosms placed in a temperature-controlled incubator for 90 days. A Templeton silt loam was as its physiochemical properties are typical region's dairy farms. results showed that clade B preferred natural (pH 6.1–6.2) with no applied nitrogen. Furthermore, synthetic urine (N700) decreased B. may have been because large amounts available N700 treatments inhibited growth Nitrospira. These suggest while present New Zealand farm soils, but their role nitrification very high environment under patch grazed pastures be limited. Further research is needed confirm this. In contrast comammox, AOB (dominated by Nitrosospira) responded positively application urine. response greatest (7.1), followed then low (4.9) soils. due difference availability. At pH, ammonia/ammonium equilibrium favours production. Calculated availability accurately predicted amoA gene abundance. Interestingly, AOA (which predominantly made up Thaumarchaeota group I.1b E) seemed prefer soils over pH. specific lineage present. did not respond

Language: Английский