Biochemical characteristics of cover crop litter affect the soil food web, organic matter decomposition, and regulation of plant-parasitic nematodes in a banana field soil

Chauvin, Camille; Dorel, Marc; Villenave, Cécile; Roger-Estrade, Jean; Thuriès, Laurent; Risède, Jean-Michel

doi:10.1016/j.apsoil.2015.07.013

Cited by 45 publications

(20 citation statements)

References 73 publications

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“…The amount of cover crop biomass produced at the sites may have also influenced the degree of impacts on the nematode community since input of organic material is a major reason cover crops impact soil biology (Ferris et al, 2012;Chauvin et al, 2015). Cover crop biomass at the sites was within the range of values that are typically observed in the Midwestern United States for fall cover crops (Stute and Posner, 1993;Andraski and Bundy, 2005).…”

Section: Discussionmentioning

confidence: 85%

“…This suggests that nematode community changes may have been relatively gradual after cover cropping. Although cover crops can influence soil ecology while they are still growing or the year after they are grown (Hinds et al, 2013;Chauvin et al, 2015), impacts can be more substantial after multiple years of rotating cash crops with cover crops (Villenave et al, 2009;Hooks et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

“…Organisms in these communities provide services such as nutrient cycling (Ferris et al, 1998;Chen and Ferris, 1999), residue decomposition (Chauvin et al, 2015;Holajjer et al, 2016), pest or pathogen suppression (Noel et al, 2010;Timper et al, 2012), and improved soil aggregation (Oades, 1993). The soil nematode community provides these services (Ferris et al, 1998;Holajjer et al, 2016) and is a dynamic bioindicator of soil ecology (Villenave et al, 2010;Grabau and Chen, 2016) since nematodes occupy a wide range of ecological niches (Bongers and Korthals, 1993;Ferris et al, 2001).…”

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confidence: 99%

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Effects of Cover Crops on Pratylenchus penetrans and the Nematode Community in Carrot Production

Grabau

Maung

Noyes

et al. 2017

Journal of Nematology

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Cover cropping is a common practice in U.S. Midwest carrot production for soil conservation, and may affect soil ecology and plant-parasitic nematodes-to which carrots are very susceptible. This study assessed the impact of cover crops-oats (Avena sativa), radish (Raphanus sativus) cv. Defender, rape (Brassica napus) cv. Dwarf Essex, and a mixture of oats and radish-on plantparasitic nematodes and soil ecology based on the nematode community in Michigan carrot production systems. Research was conducted at two field sites where cover crops were grown in Fall 2014 preceding Summer 2015 carrot production. At Site 1, rootlesion (Pratylenchus penetrans) and stunt (Tylenchorhynchus sp.) nematodes were present at low population densities (less than 25 nematodes/100 cm 3 soil), but were not significantly affected (P . 0.05) by cover crops. At Site 2, P. penetrans population densities were increased (P # 0.05) by 'Defender' radish compared to other cover crops or fallow control during cover crop growth and midseason carrot production. At both sites, there were few short-term impacts of cover cropping on soil ecology based on the nematode community. At Site 1, only at carrot harvest, radish-oats mixture and 'Dwarf Essex' rape alone enriched the soil food web based on the enrichment index (P # 0.05) while rape and radish increased structure index values. At Site 2, bacterivore abundance was increased by oats or radish cover crops compared to control, but only during carrot production. In general, cover crops did not affect the nematode community until nearly a year after cover crop growth suggesting that changes in the soil community following cover cropping may be gradual.

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Section: Discussionmentioning

confidence: 85%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Effects of Cover Crops on Pratylenchus penetrans and the Nematode Community in Carrot Production

Grabau

Maung

Noyes

et al. 2017

Journal of Nematology

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“…Desmodium and Crotalaria residues increased the soil NO 3 content, which suggests high N mineralization and microbial activity in those treatments. Generally, organic matter inputs with a low C:N ratio promote nitrogen release in soil, whereas organic matter with a high C:N ratio induces the immobilization of soil N by microorganisms [36,37]. Legumes can fix substantial quantities of N by symbiotic fixation with soil bacteria (rhizobia) and are characterized by high N content with a narrow C/N ratio reducing the competition for available N by microorganisms and consequently enhancing the decomposition and nutrient release [38,39].…”

Section: Effect Of Residue Presence Identity and Location On Soil Prmentioning

confidence: 99%

Earthworm Functional Groups, Residue Quality and Management Impact on Upland Rice Growth and Yield – An Experimental Study in the Madagascar Highlands

Ratsiatosika¹,

Bernard

Rabary

et al. 2019

JEAI

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Aims: In Madagascar, agroecological practices to increase and sustain upland rice productivity are based on an intensification of soil ecological processes. Study Design: The effects of earthworm presence and identity (Pontoscolex corethrurus, Dichogaster saliens, or no earthworms), residue presence and identity [Crotalaria grahamiana (Fabaceae), Desmodium uncinatum (Fabaceae), Stylosanthes guianensis (Fabaceae), Eleusine

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“…In the current study, we assess how changes in early season resource use may explain enhanced predator presence in response to cover cropping. We expected cover crop residue to provide both structural habitat (Holland et al, 2016) and fuel for detritus-based food webs (Chauvin et al, 2015) in the early season. Thus, habitat differences of cover crop residue and cotton at different development stages may result in a measurable change in community structure and resource use (i.e.…”

Section: Introductionmentioning

confidence: 99%

Beyond soil health: the trophic effects of cover crops shape predator communities

Bowers¹,

Toews

Schmidt

2020

Preprint

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Maintaining habitat throughout the season in annual cropping systems provides resource stability for arthropod communities. Stabilizing resource availability should lead to diverse predatory communities and their associated ecosystem services such as biological control. There is a need for studies to test change in predator communities due to habitat provisioning and estimate associated food web responses. Here we quantified predator community structure and used molecular gut-content analysis to reconstruct predator food webs in response to winter cover crops (i.e. cereal and legume based) in a cotton agroecosystem. Predators were collected from experimental field plots during each major crop development stage in 2017 and 2018, and PCR was used to estimate predator roles and responses to cover crop treatments. Cotton planted into a rye cover crop residue promoted unique predator communities in the early and mid-season as compared to no-cover fields. Correspondingly, we observed dissimilar prey consumption among cover crop treatments. While predators consumed incidental pests at high frequencies (e.g. aphids), predation on key pests by natural enemies in this system was lacking. The use of winter cover crops and reduced tillage practices increased the consumption of alternative prey by natural enemies on seedling cotton, encouraging high predator diversity that aligns temporally with potential early season pest outbreaks. Therefore, cover crops should be further integrated into integrated pest management strategies.

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Biochemical characteristics of cover crop litter affect the soil food web, organic matter decomposition, and regulation of plant-parasitic nematodes in a banana field soil

Cited by 45 publications

References 73 publications

Effects of Cover Crops on Pratylenchus penetrans and the Nematode Community in Carrot Production

Effects of Cover Crops on Pratylenchus penetrans and the Nematode Community in Carrot Production

Earthworm Functional Groups, Residue Quality and Management Impact on Upland Rice Growth and Yield – An Experimental Study in the Madagascar Highlands

Beyond soil health: the trophic effects of cover crops shape predator communities

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