Determining the particle size range of organomineral fertilisers based on the spreading characteristics of the material
Paper
Paper/Presentation Title | Determining the particle size range of organomineral fertilisers based on the spreading characteristics of the material |
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Presentation Type | Paper |
Authors | Antille, D. L. (Author), Gallar-Redondo, L. (Author) and Godwin, R. J. (Author) |
Journal or Proceedings Title | American Society of Agricultural and Biological Engineers Annual International Meeting (ASABE 2013) |
Journal Citation | 5, pp. 4251-4268 |
Number of Pages | 18 |
Year | 2013 |
Place of Publication | St. Joseph, MI. United States |
ISBN | 9781627486651 |
Digital Object Identifier (DOI) | https://doi.org/10.13031/aim.20131620197 |
Conference/Event | American Society of Agricultural and Biological Engineers Annual International Meeting (ASABE 2013) |
Event Details | American Society of Agricultural and Biological Engineers Annual International Meeting (ASABE 2013) Parent American Society of Agricultural and Biological Engineers Annual International Meeting, ASABE Event Date 21 to end of 24 Jul 2013 Event Location Kansas City, United States |
Abstract | A. The aim of this work was to determine the particle size range of two organomineral fertilisers (OMF) that may enable broadcast application with standard fertiliser spreading equipment using conventional tramlines spacing. A theoretical model was developed which predicts the trajectory of individual fertiliser particles off-the-disc. The drag coefficient was estimated for small time steps (10-6 s) in the trajectory of the particle as a function of the Reynolds number. For the range of initial velocities (from 20 to 40 m s-1) and particle densities (from 1250 to 1500kg m-3) investigated, the model showed that the particle size range for OMF should be between 1.10 and 5.50 mm in diameter. Given the assumptions made in the analysis, this size range is expected to match, approximately, the minimum and maximum landing distances of individual particles of urea (size range: 1.00 to 5.00 mm). It was suggested that OMF should have about 80% of the particles in the range of 2.25 to 4.40mm in diameter. Due to the characteristics of the materials, spreading OMF with spinning discs applicators may be restricted to tramlines spaced at a maximum of 18m apart; especially, when some degree of overlapping is required between two adjacent bouts. The model presented herein requires validation with data obtained from spreading tests. |
Keywords | biosolids granules; fertiliser particle trajectory; fertiliser spreading; organomineral fertilisers (OMF); particle diameter |
ANZSRC Field of Research 2020 | 300206. Agricultural spatial analysis and modelling |
490302. Numerical analysis | |
300499. Crop and pasture production not elsewhere classified | |
Public Notes | © (2013) 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 | National Centre for Engineering in Agriculture |
R&T and Composite Fan Impact Group, United Kingdom | |
Harper Adams University, United Kingdom | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q2756/determining-the-particle-size-range-of-organomineral-fertilisers-based-on-the-spreading-characteristics-of-the-material
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