Data · dataset · 2020
Soil Greenhouse Gas Fluxes From Maize Production Under Different Soil Fertility Management Practices in East Africa
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In sub-Saharan Africa (SSA), few studies have quantified greenhouse gas (GHG) emissions following application of soil amendments, for development of accurate national GHG inventories.
Description
Therefore, this study quantified soil GHG emissions using static chambers for two maize cropping seasons (one full year) of four different soil amendments in the central highlands of Kenya. The four treatments were: (i) animal manure; (ii) inorganic fertiliser; (iii) combined animal manure and inorganic fertiliser; and (iv) a no N-control (no amendment) laid out in a randomised complete block design.
Cumulative annual soil fluxes (February 2017 – February 2018) ranged from -1.03 ± 0.19 kg CH 4 -C ha -1 yr -1 from the manure inorganic fertiliser treatment to -0.09 ± 0.03 kg CH 4 -C ha -1 yr -1 from the manure treatment, 1391 ± 74 kg CO 2 -C ha -1 yr -1 from the control treatment to 3574 ± 113 kg CO 2 -C ha -1 yr -1 from the manure treatment and 0.13 ± 0.08 to 1.22 ± 0.12 kg N 2 O-N ha -1 yr -1 in the control and manure treatments, respectively.
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Animal manure amendment produced the highest cumulative CO 2 emissions ( P <0.001), N 2 O emissions ( P <0.001) and maize yields ( P =0.002) but the lowest N 2 O yield-scaled emission (YSE) (0.5 g N 2 O–N kg -1 grain yield). Manure combined with inorganic fertiliser had the highest cumulative CH 4 uptake ( P <0.001) and N 2 O YSE (2.2 g N 2 O–N kg -1 grain yield). Our results indicate that while the use of animal manure may increase total GHG emissions, the concurrent increase in maize yields results in reduced yield-scaled GHG emissions.
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Where it is published
- Repository landing page figshare.com/articles/Soil_GHG_Fluxes_xlsx/8868308 ↗
landing page · from DataCite
- DOI doi.org/10.6084/m9.figshare.8868308 ↗
DOI / persistent id · from DataCite
Documentation and papers
Catalogue records · 2
- DataCite API api.datacite.org/dois/10.6084/m9.figshare.8868308 ↗
metadata API · from DataCite
- DataCite Commons commons.datacite.org/doi.org/10.6084/m9.figshare.8868308 ↗
catalogue entry · from DataCite
Topics
- Stated by source
- Agriculture, forestry, and fisheries · Earth and related environmental sciences
- Inferred from text
- Soil chemistry and soil carbon sequestration 80%
Related
- Inverse of has versionSoil GHG Fluxes.xlsx
- Inverse of has versionSoil GHG Fluxes.xlsx
Provenance · 1 source records, 11 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| DataCite | 10.6084/m9.figshare.8868308 | 15 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · DataCite | connector:datacite@1.0.0 | /data/attributes/rightsList |
| byte_size | source · DataCite | connector:datacite@1.0.0 | |
| concepts[field].anzsrc:field:410604 | enrichment · DataCite | taxonomy-embedding@1.1.0 | title+keywords+description (80%) |
| concepts[field].fos:agriculture-forestry-and-fisheries | source · DataCite | connector:datacite@1.0.0 | |
| concepts[field].fos:earth-and-related-environmental-sciences | source · DataCite | connector:datacite@1.0.0 | |
| created_date | source · DataCite | connector:datacite@1.0.0 | |
| description | source · DataCite | connector:datacite@1.0.0 | /data/attributes/descriptions |
| license | source · DataCite | connector:datacite@1.0.0 | /data/attributes/rightsList |
| publication_date | source · DataCite | connector:datacite@1.0.0 | /data/attributes/dates |
| title | source · DataCite | connector:datacite@1.0.0 | /data/attributes/titles/0/title |
| updated_date | source · DataCite | connector:datacite@1.0.0 |