A dual rescaled Mitscherlich model of the simultaneous savings in phosphorus and zinc fertiliser from arbuscular mycorrhizal fungal colonisation of linseed (Linum usitatissimum L.)
Article
Article Title | A dual rescaled Mitscherlich model of the simultaneous savings in phosphorus and zinc fertiliser from arbuscular mycorrhizal fungal colonisation of linseed (Linum usitatissimum L.) |
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ERA Journal ID | 2642 |
Article Category | Article |
Authors | Seymour, Nicole P. (Author), Edwards, David G. (Author) and Thompson, John P. (Author) |
Journal Title | Plant and Soil: international journal on plant-soil relationships |
Journal Citation | 440 (1-2), pp. 97-118 |
Number of Pages | 22 |
Year | 2019 |
Publisher | Springer |
Place of Publication | Netherlands |
ISSN | 0032-079X |
1573-5036 | |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s11104-019-04065-2 |
Web Address (URL) | https://link.springer.com/article/10.1007/s11104-019-04065-2 |
Abstract | Aim: This study aimed to determine quantitatively the value of AMF in supporting plant growth at various levels of both P and Zn simultaneously. Methods: Linseed (Linum usitatissimum L.) was grown in a black vertisol at a range of applied P (0–400 mg/kg soil) and Zn (0–60 mg/kg soil) with and without arbuscular mycorrhizal fungi (AMF) in a glasshouse experiment. Results: Without AMF, linseed did not respond to either P or Zn applied alone; very high rates of both P (400 mg/kg) and Zn (15 mg/kg) were required for good growth. Plants with AMF grew as well with just 50 mg P/kg and 3.75 mg Zn/kg. AMF markedly increased P content of the linseed whole tops at all levels of P and Zn fertiliser, and increased Zn content in the presence of P fertiliser rates up to 200 mg P/kg. A dual rescaled Mitscherlich equation, with terms for both P and Zn was derived and used to calculate plant growth responses and savings of P and Zn fertiliser by AMF. Conclusions: AMF are clearly effective in reducing requirements of both P and Zn for efficient production of mycorrhizal-dependent crops. Diagnosis of AMF levels will allow more efficient use of P and Zn fertilisers saving on costly inputs of declining resources. |
Keywords | Mitscherlich response surface, linseed, flax, Arbuscularmycorrhizae, Funneliformis mosseae, Linum usitatissimum, phosphorus, zinc |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 300407. Crop and pasture nutrition |
310705. Mycology | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Department of Agriculture and Fisheries, Queensland |
University of Queensland | |
Centre for Crop Health | |
Institution of Origin | University of Southern Queensland |
Funding source | Grant ID ACIAR |
https://research.usq.edu.au/item/q5485/a-dual-rescaled-mitscherlich-model-of-the-simultaneous-savings-in-phosphorus-and-zinc-fertiliser-from-arbuscular-mycorrhizal-fungal-colonisation-of-linseed-linum-usitatissimum-l
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