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March 26, 2026Soil and Tillage ResearchOpen Access

Balancing N₂O and NH₃ emissions with maize yield: Investigating the role of alternate drip irrigation and 3,4-dimethylpyrazole phosphate (DMPP)

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Authors

JLJunming LiuYFYuanyuan FuLYLe Yang

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Overview

Field experiment evaluates the impact of irrigation and fertilizer types on nitrogen emissions and crop yield.

Key Points

  • This research aims to optimize nitrogen management to balance gaseous nitrogen losses with maize yield.
  • Conducted a two-year field experiment in the North China Plain.
  • Investigated effects of alternate and conventional drip irrigation with and without DMPP.
  • Monitored soil N₂O and NH₃ emissions, soil temperature, and water-filled pore space.
  • Alternate drip irrigation reduced cumulative N₂O emissions by 0.9–10.5%.
  • DMPP decreased cumulative N₂O emissions by 22.2–50.3%.
  • Under alternate irrigation, DMPP reduced NH₃ emissions by up to 19.4%.
  • Combination of alternate drip irrigation and DMPP minimized N₂O and NH₃ emissions while increasing maize yield by 14.8–21.4%.

Cite This Study

Liu et al. (2026) studied this question.

synapsesocial.com/papers/69c4cdb6fdc3bde44891a722https://doi.org/10.1016/j.still.2026.107178
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