Nitrogen and phosphorus availability following topsoil application of mineral and organomineral fertilisers (OMF)
Paper
Paper/Presentation Title | Nitrogen and phosphorus availability following topsoil application of mineral and organomineral fertilisers (OMF) |
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Presentation Type | Paper |
Authors | Antille, D. L. (Author), Sakrabani, R. (Author) and Godwin, R. J. (Author) |
Journal or Proceedings Title | American Society of Agricultural and Biological Engineers Annual International Meeting (ASABE 2012) |
Journal Citation | 5, pp. 4134-4150 |
Number of Pages | 17 |
Year | 2012 |
Place of Publication | St. Joseph, MI. United States |
ISBN | 9781622762088 |
Digital Object Identifier (DOI) | https://doi.org/10.13031/2013.41937 |
Conference/Event | American Society of Agricultural and Biological Engineers Annual International Meeting (ASABE 2012) |
Event Details | American Society of Agricultural and Biological Engineers Annual International Meeting (ASABE 2012) Parent American Society of Agricultural and Biological Engineers Annual International Meeting, ASABE Event Date 29 Jul 2012 to end of 01 Aug 2012 Event Location Dallas, United States |
Abstract | The aim of this study was to determine the availability of N and P resulting from the soil application of a novel organomineral fertiliser (OMF15 - 15:4:4) reported in earlier studies, in comparison with urea (46% N) and single superphosphate (SSP - 0:18:0). A sandy loam and a clay loam soils were incubated over a period of 90 days at 25 degrees Celsius. N and P (as P2O5) were applied at rates equivalent to 0 (control), 150 and 300kg ha-1 and the soils maintained near field capacity. The majority of the N was released from OMF15 within 30 from application (range 40%-72% of total OMF-N applied) with a further 10% to 28% in the following 60 to 90 days. OMF15 required an accumulated thermal time of 2250 d°C to release between 68% and 79% of the total OMF-N applied. From this, it was suggested that mineralisation of the organic-N fraction in the OMF would progress beyond the harvest of winter cereal crops in-field conditions in the UK. The availability of P from OMF15 was low throughout the experiment ranging from -5.6% to 6.4% (% of total OMF-P applied). Despite this, a change in soil-P index from 5 to 6 was observed after the 90 days incubation period but the overall increase in soil-P status was marginal in both soils. For SSP, P-availability ranged from 16% to 46% (% of total SSP-P applied). The application of SSP induced a significant (p<0.001) increase in soil-P levels compared with the controls which led to an overall increase in soil-P index from 5 to 6. The results of this study aided the development of a strategy for the use of OMF in winter cereal crops. |
Keywords | clay loam soils; in-field; incubation periods; mineralisation; near fields; organominerals; sandy loams; single superphosphate; soil applications; winter cereals |
ANZSRC Field of Research 2020 | 300407. Crop and pasture nutrition |
410604. Soil chemistry and soil carbon sequestration (excl. carbon sequestration science) | |
300499. Crop and pasture production not elsewhere classified | |
Public Notes | © (2012) by the American Society of Agricultural & Biological Engineers. For information about securing permission to reprint or reproduce a technical presentation, please contact ASABE at |
Byline Affiliations | Teagasc Agriculture and Food Development Authority, Ireland |
Cranfield University, United Kingdom | |
Harper Adams University, United Kingdom | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q275q/nitrogen-and-phosphorus-availability-following-topsoil-application-of-mineral-and-organomineral-fertilisers-omf
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