Please use this identifier to cite or link to this item: https://hdl.handle.net/1959.11/19705
Title: The fate of fertiliser P in soil under pasture and uptake by subterraneum clover: a field study using ³³P-labelled single superphosphate
Contributor(s): McLaren, Timothy (author); McLaughlin, Michael J (author); McBeath, Therese M (author); Simpson, Richard J (author); Smernik, Ronald J (author); Guppy, Christopher  (author)orcid ; Richardson, Alan E (author)
Publication Date: 2016
Open Access: Yes
DOI: 10.1007/s11104-015-2610-6
Handle Link: https://hdl.handle.net/1959.11/19705
Abstract: Background and aims: Single superphosphate (SSP) is a major source of phosphorus (P) used in grazing systems to improve pasture production. The aim of this experiment was to determine the fate of fertiliser P in clover pastures under field conditions. Methods: A procedure was developed to radiolabel SSP granules with a ³³P radiotracer, which was then applied to the soil surface (equivalent to ~12 kg P ha‾¹) of a clover pasture. Recovery of fertiliser P was determined in clover shoots, fertiliser granules and soil fractions (surface layer: 0-4 cm and sub-surface layer: 4-8cm). Results: The P diffusion patterns of the ³³P-labelled SSP granules were not significantly different to those of commercial SSP granules (P > 0.05). Recovery of fertiliser P in clover shoots was 30-35 %. A considerable proportion of the fertiliser P (~28 %) was recovered in the surface soil layer and was largely inorganic P. Conclusions: Recovery of fertiliser P by clover plants was up to 35 % in the year of application. Much of the fertiliser P in soil fractions was inorganic P, which highlights the importance of inorganic P forms and dynamics in soils under clover pasture on a single season timeframe at these sites.
Publication Type: Journal Article
Source of Publication: Plant and Soil, 401(1-2), p. 23-38
Publisher: Springer Netherlands
Place of Publication: Netherlands
ISSN: 1573-5036
0032-079X
Fields of Research (FoR) 2008: 050304 Soil Chemistry (excl. Carbon Sequestration Science)
070306 Crop and Pasture Nutrition
Fields of Research (FoR) 2020: 410604 Soil chemistry and soil carbon sequestration (excl. carbon sequestration science)
300407 Crop and pasture nutrition
Socio-Economic Objective (SEO) 2008: 830403 Native and Residual Pastures
961402 Farmland, Arable Cropland and Permanent Cropland Soils
Socio-Economic Objective (SEO) 2020: 100503 Native and residual pastures
180605 Soils
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Appears in Collections:Journal Article

Files in This Item:
5 files
File Description SizeFormat 
open/SOURCE02.pdfPre-peer review version1.54 MBAdobe PDF
Download Adobe
View/Open
Show full item record

SCOPUSTM   
Citations

22
checked on Mar 2, 2024

Page view(s)

1,288
checked on Mar 17, 2024

Download(s)

346
checked on Mar 17, 2024
Google Media

Google ScholarTM

Check

Altmetric


Items in Research UNE are protected by copyright, with all rights reserved, unless otherwise indicated.