Associational resistance through intercropping reduces yield losses to soil-borne pests and diseases

© 2022 The Authors. New Phytologist © 2022 New Phytologist Foundation.

Bibliographische Detailangaben
Veröffentlicht in:The New phytologist. - 1979. - 235(2022), 6 vom: 21. Sept., Seite 2393-2405
1. Verfasser: Chadfield, Victoria G A (VerfasserIn)
Weitere Verfasser: Hartley, Sue E, Redeker, Kelly R
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022
Zugriff auf das übergeordnete Werk:The New phytologist
Schlagworte:Journal Article Meta-Analysis Research Support, Non-U.S. Gov't agroecology associational resistance co-crops ecological interactions meta-analysis meta-regression nematodes mehr... pathogen Soil
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520 |a Associational resistance to herbivore and pathogen attack is a well documented ecological phenomenon and, if applied to agriculture, may reduce impact of pests and diseases on crop yields without recourse to pesticides. The value of associational resistance through intercropping, planting multiple crops alongside each other, as a sustainable control method remains unclear, due to variable outcomes reported in the published literature. We performed a meta-analysis to provide a quantitative assessment of benefits of intercropping for target plant resistance to plant-parasitic nematodes and soil-borne diseases. We found that intercropping reduced damage to focal crops from nematodes by 40% and disease incidence by 55%. Intercropping efficacy varied with biological variables, such as field fertilisation status and intercrop family, and methodology, including whether study samples were potted or in fields. Nematode control using intercropping was sufficient to offset reductions in focal crop yield from intercrop presence, making intercropping a viable agricultural tool. We identify key drivers for underpinning the success of intercropping and indicate areas for future research to improve efficacy. This study also highlights the potential benefits of harnessing ecological knowledge on plant-enemy interactions for improving agricultural and landscape sustainability 
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650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a agroecology 
650 4 |a associational resistance 
650 4 |a co-crops 
650 4 |a ecological interactions 
650 4 |a meta-analysis 
650 4 |a meta-regression 
650 4 |a nematodes 
650 4 |a pathogen 
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700 1 |a Hartley, Sue E  |e verfasserin  |4 aut 
700 1 |a Redeker, Kelly R  |e verfasserin  |4 aut 
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