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, 2013:960629. pp. 1-9. ISSN 1687-7667

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Abstract

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.
Faculty/School / Institute/Centre: Historic - Faculty of Health, Engineering and Sciences - School of Agricultural, Computational and Environmental Sciences (1 Jul 2013 - 5 Sep 2019)
Faculty/School / Institute/Centre: Historic - Faculty of Health, Engineering and Sciences - School of Agricultural, Computational and Environmental Sciences (1 Jul 2013 - 5 Sep 2019)
Date Deposited: 20 May 2014 04:53
Last Modified: 08 Jun 2021 04:25
Uncontrolled Keywords: sewage; sludge; recycling; organic fertiliser; biosolids
Fields of Research (2008): 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)
Fields of Research (2020): 34 CHEMICAL SCIENCES > 3402 Inorganic chemistry > 340209 Organometallic chemistry
40 ENGINEERING > 4004 Chemical engineering > 400411 Water treatment processes
30 AGRICULTURAL, VETERINARY AND FOOD SCIENCES > 3004 Crop and pasture production > 300499 Crop and pasture production not elsewhere classified
Socio-Economic Objectives (2008): D Environment > 96 Environment > 9609 Land and Water Management > 960999 Land and Water Management of Environments not elsewhere classified
Identification Number or DOI: https://doi.org/10.1155/2013/960629
URI: http://eprints.usq.edu.au/id/eprint/25214

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