Field-scale evaluation of biosolids-derived organomineral fertilisers applied to ryegrass (Lolium perenne L.) in England

Antille, Diogenes L. and Sakrabani, Ruben and Godwin, Richard J. (2013) Field-scale evaluation of biosolids-derived organomineral fertilisers applied to ryegrass (Lolium perenne L.) in England. Applied and Environmental Soil Science, 2013 (Article 960629). pp. 1-9. ISSN 1687-7667

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A field-scale experiment was conducted to compare the suitability of two organomineral fertiliser (OMF) formulations (OMF- 10: 4: 4 and OMF- 15: 4: 4) with urea and biosolids granules applied to perennial ryegrass. Results showed a 25% to 30% increase in dry matter yield (DMY) with application of OMF compared with biosolids granules but about 5% lower than urea. For OMF, an average input of 0.8 × N max yielded 0.98 × DMY max which was similar to that of urea; whereas, for biosolids, a yield of 0.92 × DMY max required an input of 0.6 × N max but DMY was lower (P < 0.05). Agronomic efficiencies with OMF were in the range of 26 to 35 kg kg - 1, approximately double those of biosolids but about 5% to 10% lower than urea. Soil extractable P levels remained close to constant; therefore, soil P Index was not affected by OMF application. This result supported the reasons for the proposed OMF formulations and demonstrated the advantage of the products compared with biosolids which induced an increase (P > 0.05), in soil extractable P. The application of OMF at rates which do not exceed the optimum N rate for the grass crop should not induce significant changes in soil P Index including application to soils with satisfactory P levels. OMF application strategies are discussed which will enable minimising environmental concerns and maximising fertiliser use efficiency.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Special Issue: Biosolids Soil Application - Agronomic and Environmental Implications. © 2013 Diogenes L. Antille et al. This is an open access article distributed under the Creative Commons Attribution 4.0 License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Faculty / Department / School: Current - Faculty of Health, Engineering and Sciences - School of Agricultural, Computational and Environmental Sciences
Date Deposited: 20 May 2014 04:53
Last Modified: 18 Dec 2017 05:39
Uncontrolled Keywords: sewage; sludge; recycling; organic fertiliser; biosolids
Fields of Research : 03 Chemical Sciences > 0399 Other Chemical Sciences > 039904 Organometallic Chemistry
09 Engineering > 0904 Chemical Engineering > 090410 Water Treatment Processes
07 Agricultural and Veterinary Sciences > 0799 Other Agricultural and Veterinary Sciences > 079902 Fertilisers and Agrochemicals (incl. Application)
Socio-Economic Objective: D Environment > 96 Environment > 9609 Land and Water Management > 960999 Land and Water Management of Environments not elsewhere classified
Identification Number or DOI: 10.1155/2013/960629

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