Nitrous oxide emissions from pigeon pea–maize rotation in response to conservation agriculture and biochar amendments in a Ferralsol, northern Uganda

Namatsheve, Talent; Martinsen, Vegard; Mulder, Jan; Obia, Alfred; Dörsch, Peter

doi:10.5194/bg-23-2787-2026

Articles | Volume 23, issue 8

https://doi.org/10.5194/bg-23-2787-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/bg-23-2787-2026

© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 23, issue 8

Research article

|

22 Apr 2026

Research article |

| 22 Apr 2026

Nitrous oxide emissions from pigeon pea–maize rotation in response to conservation agriculture and biochar amendments in a Ferralsol, northern Uganda

Talent Namatsheve, Vegard Martinsen, Jan Mulder, Alfred Obia, and Peter Dörsch

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https://doi.org/10.5194/bg-23-2787-2026-supplement

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Data for: Nitrous oxide emissions from pigeon pea – maize rotation in response to conservation agriculture and biochar amendments in a Ferralsol, northern Uganda T. Namatsheve et al. https://doi.org/10.18710/CNP8TF

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Subsistence farmers in sub Saharan Africa do not apply inroganic fertilizers, leading to infertile soils and poor yields. We studied whether conservation agriculture with crop rotation and biochar could improve yields and reduce greenhouse gas losses in Uganda over two growing seasons. Our results showed that conservation agriculture and biochar amendments reduced nitrous oxide emissions by 33 % and 66 % compared to Conventional treatment in the first and second season, respectively.