Organomineral fertilisers: nutrient dynamics and evaluation of agronomic characteristics
Paper
Paper/Presentation Title | Organomineral fertilisers: nutrient dynamics and evaluation of agronomic characteristics |
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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 2009) |
Journal Citation | 4, pp. 2063-2081 |
Number of Pages | 19 |
Year | 2009 |
Place of Publication | St. Joseph, MI. United States |
ISBN | 9781615673629 |
Digital Object Identifier (DOI) | https://doi.org/10.13031/2013.27018 |
Conference/Event | American Society of Agricultural and Biological Engineers Annual International Meeting (ASABE 2009) |
Event Details | American Society of Agricultural and Biological Engineers Annual International Meeting (ASABE 2009) Parent American Society of Agricultural and Biological Engineers Annual International Meeting, ASABE Event Date 21 to end of 24 Jun 2009 Event Location Reno, United States |
Abstract | Recycling of sewage sludge (biosolids) to agricultural land is regarded as the best practicable environmental option and currently represents the main disposal route in the UK. A novel method was developed by United Utilities-plc to produce organomineral fertilisers (OMFs) using biosolids. The purpose of this investigation was to identify the effects of the use of OMFs on winter wheat (Triticum aestivum L) and rye-grass (Lolium perenne L.) and validate the data reported in previous studies. Nitrogen and phosphorus release characteristics were also investigated under controlled laboratory conditions. Results indicated that grain yield (wheat) and dry matter production (rye-grass) were significantly increased (p<0.001) following application of OMFs and urea compared with the control (non-fertilised crop). Higher concentration of available N in the OMFs and urea resulted in significantly higher (p<0.001) grain yield and dry matter than the biosolid. Following fertiliser and biosolids application, the concentration of N in harvested plant material (rye-grass) was also significantly increased in the all treatments compared with the control (p<0.001). The MERNs (most economic rate of N) were calculated for wheat; these were 199.6; 189.7; and 223.5kg [N] ha -1 for urea, OMF 15, and OMF 10 respectively. Following application of OMFs and urea to the soil, the majority of the N (up to 80% of the total N applied) was found to be released in the first 30 days after application; thereafter, N-fertiliser was released at a rate comparable to the soil organic N. Total N in the soil was found to have significantly increased (p=0.002) compared with the control (non-fertilised soil) after two consecutives years of fertiliser application. This was more evident when the organic N content in the fertiliser material was increased in relation to the readily available N. Soil extractable P was not significantly (p=0.962) changed after two consecutive years of OMFs and biosolids application; however, a marginally larger increase in soil extractable P was observed when biosolids were used. |
Keywords | biosolids; MERN; N & P release characteristics; organomineral fertilisers; OMF; rye-grass; wheat |
ANZSRC Field of Research 2020 | 300407. Crop and pasture nutrition |
400411. Water treatment processes | |
300499. Crop and pasture production not elsewhere classified | |
Public Notes | © (2009) by American Society of Agricultural & Biological Engineers. For information about securing permission to reprint or reproduce a technical presentation, please contact ASABE at rutter@asabe.org or 269-932-7004 (2950 Niles Road, St. Joseph, MI 49085-9659 USA). |
Byline Affiliations | Cranfield University, United Kingdom |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q2760/organomineral-fertilisers-nutrient-dynamics-and-evaluation-of-agronomic-characteristics
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