Summary
This field study examined the interactive effects of crop straw incorporation and nitrogen fertiliser application on nitrous oxide emissions in intensive arable systems. The findings indicate that straw incorporation and N fertiliser do not act independently but interact in ways that significantly affect soil N₂O production. The work contributes to understanding how organic matter and nutrient management strategies can be jointly optimised to mitigate agricultural greenhouse gas emissions in high-input farming systems.
UK applicability
The mechanistic insights on straw–nitrogen interactions may be applicable to UK cereal systems, though soil conditions, crop types and climate differ from the study location. UK farmers seeking to incorporate straw whilst meeting emissions reduction targets should consider these interactive effects in their fertiliser application decisions.
Key measures
Soil N₂O flux, cumulative N₂O emissions, soil mineral nitrogen concentrations, soil moisture, soil temperature
Outcomes reported
The study measured soil nitrous oxide (N₂O) emissions under different combinations of crop straw incorporation and nitrogen fertiliser application rates in intensive arable cropping. It quantified how these two management practices interact to influence greenhouse gas production and identified optimisation strategies for reducing emissions.
Topic tags
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