Nitrogen release characteristics from biosolids-derived organomineral fertilizers
dc.contributor.author | Antille, Diogenes Luis | |
dc.contributor.author | Sakrabani, Ruben | |
dc.contributor.author | Godwin, Richard J. | |
dc.date.accessioned | 2016-03-11T14:04:45Z | |
dc.date.available | 2016-03-11T14:04:45Z | |
dc.date.issued | 2014-04-25 | |
dc.description.abstract | This study investigated the availability of nitrogen (N) following soil application of a novel biosolids-derived organomineral fertilizer (OMF15—15:4:4) in comparison with urea (46% N). OMF15 is produced by coating biosolids granules (particle size range: 1.10–5.50 mm in diameter) with urea and potash [60% potassium oxide (K2O)], which increase the concentration of mineral N and potassium (K), respectively, resulting in a balanced fertilizer material suitable for application in cereal and grass crops. The study comprised two soil types of contrasting characteristics which were incubated over a period of 90 days at 25 °C and maintained near field capacity. Nitrogen was applied at rates equivalent to 0 (control), 150, and 300 kg ha−1, and soil mineral N measured routinely using standard laboratory techniques. Results showed that the majority of N was released from OMF15 within 30 days from application (range: 40% to 72% of total OMF15-N applied) with a further 10% to 28% in the following 60–90 days. OMF15 required an accumulated thermal time of 2250 degrees-day to release between 68% and 79% of the total OMF15-N applied. From this, it was inferred that mineralization of the organic-N fraction in OMF15 is likely to progress beyond harvest of winter cereal crops in-field conditions in England. The results of this study aided the development of fertilization strategies for the best use of OMF in winter cereal and grass crops. | en_UK |
dc.identifier.citation | Antille DL, Sakrabani R, Godwin RJ. (2014) Nitrogen release characteristics from biosolids-derived organomineral fertilizers. Communications in Soil Science and Plant Analysis, Volume 45, Issue 12, 2014, pp.1687-1698 | en_UK |
dc.identifier.issn | 0010-3624 | |
dc.identifier.uri | http://dx.doi.org/10.1080/00103624.2014.907915 | |
dc.identifier.uri | http://dspace.lib.cranfield.ac.uk/handle/1826/9783 | |
dc.language.iso | en | en_UK |
dc.publisher | Taylor and Francis | en_UK |
dc.rights | Attribution 3.0 Unported | |
dc.rights.uri | https://creativecommons.org/licenses/by/3.0/ | |
dc.subject | Biosolids granules | en_UK |
dc.subject | nitrogen availability | en_UK |
dc.subject | organomineral fertilizers (OMF) | en_UK |
dc.subject | soil N dynamics | en_UK |
dc.subject | winter cereal and grass crops | en_UK |
dc.title | Nitrogen release characteristics from biosolids-derived organomineral fertilizers | en_UK |
dc.type | Article | en_UK |
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