- Title
- Exploring efficient techniques to decrease phosphorus levels in previously farmed land to promote the revival of indigenous grassland
- Creator
- Shakir, Shakir; Florentine, Singarayer; Schultz, Nicholas
- Date
- 2023
- Type
- Text; Journal article
- Identifier
- http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/197078
- Identifier
- vital:18800
- Identifier
-
https://doi.org/10.24271/PSR.2023.398760.1331
- Identifier
- ISSN:2706-5944 (ISSN)
- Abstract
- Restoration of native grasslands is challenging due to high soil phosphorus levels. Cultivation of plants with high phosphorus (P) absorption is an optimal solution to remove and decrease P from the soil. It has been demonstrated that native grassland taxa (species) of the genus Ptilotus have significant P-uptake. In a glasshouse study, Ptilotus macrocephalus and Ptilotus polystachyus were tested for their ability to reduce the amount of soil phosphorus that was readily available. Lupinus albus, a third species with a reputation for high phosphorus uptake, served as a comparison species, and a further treatment included Phoslock®, a soil additive that could bind soil phosphorus into insoluble forms. The findings revealed that phosphorus in the soil was absorbed at a high level via Ptilotus macrocephalus and Ptilotus polystachyus showed a maximum reduction of P (-2.58 and -2.55 ppm). It is argued that several years of planting and harvesting these plants will offer a workable method for lowering soil phosphorus levels. However, this only happened at high concentrations of 1500 g/m2 and when soil phosphorus concentrations were very high. Despite, the Phoslock®'s effectiveness in lowering soil-accessible phosphorus. At concentrations often observed in former agriculture paddocks, it proved less effective. The study's findings have improved our existing comprehension of reclaiming abandoned grassland. © 2023 Authors. All rights reserved.
- Publisher
- University of Garmian
- Relation
- Passer Journal of Basic and Applied Sciences Vol. 5, no. 2 (2023), p. 371-376
- Rights
- All metadata describing materials held in, or linked to, the repository is freely available under a CC0 licence
- Rights
- http://creativecommons.org/licenses/by-nc/4.0/
- Rights
- Copyright © 2023 Authors
- Rights
- Open Access
- Subject
- 4104 Environmental management; Binding; Land management; Phoslock; Phosphorus; Ptilotus; Taxa
- Full Text
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