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Published (Version of record)CC BY-NC-ND V4.0, Open Access
Published (Version of record)CC BY-NC-ND V4.0, Open
Journal article
Agronomic phosphorus fertiliser value of animal manures is comparable to monoammonium phosphate for wheat production
Agriculture, ecosystems & environment, Vol.396, pp.1-10
01/02/2026
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Abstract
Animal manures may be a sustainable alternative to rock phosphate-based fertilisers, provided they have similar agronomic phosphorus (P) fertiliser values. If higher application rates from manure are required to match crop yield responses to mineral P fertilisers, soil P can accumulate and P use efficiency of the farming system is reduced. This study investigated the P fertiliser value of various manures compared to monoammonium phosphate (MAP). A P dose-response experiment assessed the impact of cattle (CaM), chicken (ChM), and pig (PiM) manures compared to MAP on wheat growth (biomass, grain yield) and P uptake in an Arenosol. The effects of subsurface banding versus incorporation were also evaluated in an Arenosol and a Ferralsol, with post-harvest soil P fractions analysed in selected treatments. To achieve 95 % maximum grain yield, P rates required were in order PiM > CaM = MAP > ChM. The ChM treatment had poor growth at high manure application rates due to sodium toxicity. Mixed through the topsoil, CaM and PiM increased biomass (95 % of maximum) by 12.3 % and 9.9 % and grain yield (95 % of maximum) by 19.7 and 20.9 % relative to banded MAP. Subsurface banding enhanced P uptake in a high P-sorbing Ferralsol, while incorporation enhanced uptake in a low P-sorbing Arenosol. In the Ferralsol, more P was retained in the sodium bicarbonate extractable organic P (NaHCO₃-Po) fraction with CaM and in the inorganic P (NaHCO₃-Pi) fraction with MAP. Cattle manure and PiM had comparable or greater P fertiliser value than MAP for wheat yields, with the application method likely impacting P availability. These findings demonstrate that certain manures can match or exceed the agronomic P fertiliser value of MAP in wheat production.
Details
- Title
- Agronomic phosphorus fertiliser value of animal manures is comparable to monoammonium phosphate for wheat production
- Creators
- Maryam Barati - Southern Cross UniversityTimothy I. McLaren - The University of QueenslandChelsea Janke - The University of QueenslandSimon Diffey - Apex Biometry (Western Australia, South Fremantle)Michael J. Reading - Southern Cross UniversityAbraham Gibson - Southern Cross UniversityTerry J. Rose - Southern Cross University
- Publication Details
- Agriculture, ecosystems & environment, Vol.396, pp.1-10
- Publisher
- Elsevier B.V; AMSTERDAM
- Grant note
- This research was supported by the Cooperative Research Centre for High Performance Soils, funded by the Australian Government’s Cooperative Research Centre Program, and a supplementary scholarship from the Grains Research and Development Corporation for MB.
- Identifiers
- 991013314521002368
- Copyright
- © 2025 The Author(s).
- Academic Unit
- Faculty of Science and Engineering; Science
- Language
- English
- Resource Type
- Journal article