Biochar Applied with Inorganic Nitrogen Improves Soil Carbon, Nitrate and Ammonium Content of a Sandy Loam Temperate Soil
| dc.contributor.author | Omara, Peter | |
| dc.contributor.author | Aula, Lawrence | |
| dc.contributor.author | Otim, Fred | |
| dc.contributor.author | Obia, Alfred | |
| dc.contributor.author | Souza, Joao Luis Bigatao | |
| dc.contributor.author | Arnall, Daryl Brain | |
| dc.date.accessioned | 2023-11-20T10:42:21Z | |
| dc.date.available | 2023-11-20T10:42:21Z | |
| dc.date.issued | 2022-02-23 | |
| dc.description.abstract | Biochar is suggested to improve soil properties. However, its combination with inorganic nitrogen (N) fertilizer in temperate soils is not well understood. This study compared the effect of fertilizer N-biochar-combinations (NBC) and fertilizer-N (FN) on total soil N (TSN), soil organic carbon (SOC), soil nitrate (NO3−–N), and ammonium (NH4+–N). Soil samples were taken from experiments at Efaw and Lake Carl Blackwell (LCB), Oklahoma, USA with ten treatments consisting of three N rates (50, 100, and 150 kg N ha−1) and three biochar rates (5, 10, and 15 t ha−1). Results at Efaw showed greater TSN and SOC under NBC compared to FN by 3 and 21%, respectively. No percentage difference was observed for NH4+–N while NO3−–N was lower by 7%. At LCB, TSN, SOC, NO3−–N, and NH4+–N were higher under NBC by 5, 18, 24, and 10%, respectively, compared to FN. Whereas application of biochar improved SOC at both sites, NO3−–N and NH4+–N were only significant at LCB site with a sandy loam soil but not at Efaw with silty clay loam. Therefore, biochar applied in combination with inorganic N can improve N availability with potential to increase crop N uptake on coarse textured soils. | en_US |
| dc.identifier.citation | Omara, P., Aula, L., Otim, F., Obia, A., Souza, J. L. B., & Arnall, D. B. (2022). Biochar Applied with Inorganic Nitrogen Improves Soil Carbon, Nitrate and Ammonium Content of a Sandy Loam Temperate Soil. Nitrogen, 3(1), 90-100. | en_US |
| dc.identifier.uri | https://doi.org/10.3390/nitrogen3010007 | |
| dc.identifier.uri | https://hdl.handle.net/20.500.14270/325 | |
| dc.language.iso | en | en_US |
| dc.publisher | MDPI, Basel, Switzerland | en_US |
| dc.subject | biochar | en_US |
| dc.subject | total nitrogen | en_US |
| dc.subject | nitrate | en_US |
| dc.subject | ammonium | en_US |
| dc.subject | soil organic carbon | en_US |
| dc.title | Biochar Applied with Inorganic Nitrogen Improves Soil Carbon, Nitrate and Ammonium Content of a Sandy Loam Temperate Soil | en_US |
| dc.type | Article | en_US |