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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1111/nph.15308
|2 doi
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|a DE-627
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|a eng
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1 |
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|a Ryan, Megan H
|e verfasserin
|4 aut
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|a Little evidence that farmers should consider abundance or diversity of arbuscular mycorrhizal fungi when managing crops
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|c 2018
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 25.09.2019
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|a Date Revised 31.03.2022
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|a published: Print-Electronic
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|a CommentIn: New Phytol. 2019 May;222(3):1176-1178. doi: 10.1111/nph.15600. - PMID 30657177
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|a Citation Status MEDLINE
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|a © 2018 The Authors. New Phytologist © 2018 New Phytologist Trust.
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|a Contents Summary 1092 I. Introduction 1093 II. Investigating activity of AMF in agroecosystems 1093 III. Crop benefit from AMF: agronomic and mycorrhizal literature differ 1094 IV. Flawed methodology leads to benefits of mycorrhizas being overstated 1094 V. Rigorous methodology suggests low colonisation by AMF can sometimes reduce crop yield 1095 VI. Predicting when mycorrhizas matter for crop yield 1096 VII. Crop genotype 1099 VIII. Fungal genotype 1100 IX. Complex interactions between the mycorrhizal fungal and soil microbial communities 1102 X. Phosphorus-efficient agroecosystems 1102 XI. Conclusions 1103 Acknowledgements 1104 References 1104 SUMMARY: Arbuscular mycorrhizal fungi (AMF) are ubiquitous in agroecosystems and often stated to be critical for crop yield and agroecosystem sustainability. However, should farmers modify management to enhance the abundance and diversity of AMF? We address this question with a focus on field experiments that manipulated colonisation by indigenous AMF and report crop yield, or investigated community structure and diversity of AMF. We find that the literature presents an overly optimistic view of the importance of AMF in crop yield due, in part, to flawed methodology in field experiments. A small body of rigorous research only sometimes reports a positive impact of high colonisation on crop yield, even under phosphorus limitation. We suggest that studies vary due to the interaction of environment and genotype (crop and mycorrhizal fungal). We also find that the literature can be overly pessimistic about the impact of some common agricultural practices on mycorrhizal fungal communities and that interactions between AMF and soil microbes are complex and poorly understood. We provide a template for future field experiments and a list of research priorities, including phosphorus-efficient agroecosystems. However, we conclude that management of AMF by farmers will not be warranted until benefits are demonstrated at the field scale under prescribed agronomic management
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Review
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|a agronomy
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|a crop sequences
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| 650 |
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|a experimental methodology
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|a phosphorus-efficient agroecosystems
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| 650 |
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|a soil microbes
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| 650 |
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|a trade-balance model
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| 650 |
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|a yield
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| 650 |
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|a Phosphorus
|2 NLM
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| 650 |
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|a 27YLU75U4W
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| 700 |
1 |
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|a Graham, James H
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t The New phytologist
|d 1984
|g 220(2018), 4 vom: 04. Dez., Seite 1092-1107
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|x 1469-8137
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|g volume:220
|g year:2018
|g number:4
|g day:04
|g month:12
|g pages:1092-1107
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|u http://dx.doi.org/10.1111/nph.15308
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