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- Title
Biochar and urease inhibitor mitigate NH<sub>3</sub> and N<sub>2</sub>O emissions and improve wheat yield in a urea fertilized alkaline soil.
- Authors
Dawar, Khadim; Fahad, Shah; Jahangir, M. M. R.; Munir, Iqbal; Alam, Syed Sartaj; Khan, Shah Alam; Mian, Ishaq Ahmad; Datta, Rahul; Saud, Shah; Banout, Jan; Adnan, Muhammad; Ahmad, Muhammad Nauman; Khan, Aamir; Dewil, Raf; Habib-ur-Rahman, Muhammad; Ansari, Mohammad Javed; Danish, Subhan
- Abstract
In this study, we explored the role of biochar (BC) and/or urease inhibitor (UI) in mitigating ammonia (NH3) and nitrous oxide (N2O) discharge from urea fertilized wheat cultivated fields in Pakistan (34.01°N, 71.71°E). The experiment included five treatments [control, urea (150 kg N ha−1), BC (10 Mg ha−1), urea + BC and urea + BC + UI (1 L ton−1)], which were all repeated four times and were carried out in a randomized complete block design. Urea supplementation along with BC and BC + UI reduced soil NH3 emissions by 27% and 69%, respectively, compared to sole urea application. Nitrous oxide emissions from urea fertilized plots were also reduced by 24% and 53% applying BC and BC + UI, respectively, compared to urea alone. Application of BC with urea improved the grain yield, shoot biomass, and total N uptake of wheat by 13%, 24%, and 12%, respectively, compared to urea alone. Moreover, UI further promoted biomass and grain yield, and N assimilation in wheat by 38%, 22% and 27%, respectively, over sole urea application. In conclusion, application of BC and/or UI can mitigate NH3 and N2O emissions from urea fertilized soil, improve N use efficiency (NUE) and overall crop productivity.
- Subjects
UREASE; ENZYME inhibitors; BIOCHAR; NITROUS oxide; AMMONIA; SODIC soils
- Publication
Scientific Reports, 2021, Vol 11, Issue 1, p1
- ISSN
2045-2322
- Publication type
Article
- DOI
10.1038/s41598-021-96771-0