Role of native soil biology in Brassicaceous seed meal-induced weed suppression

Hoagland, Lori; Carpenter‐Boggs, Lynne; Reganold, John P.; Mazzola, Mark

doi:10.1016/j.soilbio.2008.02.003

Cited by 56 publications

(40 citation statements)

References 31 publications

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“…Mustard (Sinapis alba L.) plants contain glucosinolates (Ildikó et al, 2006), mainly in the seeds, which are considered allelopathic compounds (Kobayashi, 2004). Mustard seed is processed for the extraction of the seed oil for biodiesel (Ciubota-Rosie et al, 2013;Hoagland et al, 2008) and the manufacture of food condiments (Brown, 1997). In greenhouse weed control research, mustard seed meal (MSM) reduced emergence and development of annual bluegrass (Poa annua L.), common chickweed (Stellaria media (L.) Vill.…”

Section: Mustard Seed Mealmentioning

confidence: 99%

Impact of Mustard Seed Meal Applications on Direct-Seeded Cucurbits and Weed Control

Webber¹,

White²,

Boydston³

et al. 2017

JAS

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Weed control in organic production systems can be a labor intensive and expensive process. Mustard seed meal (MSM) is phytotoxic and a potential pre-emergent and preplant-incorporated organic herbicide for controlling germinating and emerging weed seedlings: unfortunately, MSM may also adversely impact seedling survival of certain direct-seeded vegetable crops. Field research was conducted in southeast Oklahoma (Lane, OK) to determine the phytotoxic impact of MSM on indigenous weeds and seedling establishment of cantaloupe (Cucumis melo L.) var. 'PMR-45', cucumber (Cucumis sativus L.) var. 'Marketmore 76', yellow squash (Cucurbita pepo L.) var. 'Crookneck', and watermelon (Citrullus lanatus L.) var. 'Dixie'. The factorial experiment included 2 MSM incorporation levels (no incorporation and incorporation), 2 MSM application rates (2.25 and 4.5 mt/ha), 2 application patterns (banded and solid), 2 experimental control treatments (1 for each incorporation method) and four replications. The soil [Bernow fine sandy loam, 0-3% slope (fine-loamy, siliceous, thermic Glossic Paleudalf)] was prepared for planting by plowing, fertilizing, and forming raised beds. MSM was applied to raised beds 3 m-long on 0.76 m-centers. The banded application produced a 10.2 cm-wide MSM-free area in the bed center where the crop would later be direct-seeded. The MSM was then either left on the surface or incorporated into the top 2.5-5.0 cm and then direct-seeded with cantaloupe, cucumber, yellow squash, and watermelon. Plant stands and weed control ratings were collected during the experimental period. Twenty-eight days after planting, the entire plot was harvested and the fresh and dry plant weights determined. Although applications of MSM provided sufficient broadleaf, grass, and total weed control, cucurbit establishment and development, the application of MSM at 2.25 and 4.5 mt/ha severely reduced crop establishment of direct-seeded cucurbits. Further research should address banded applications of MSM with either established direct-seeded or transplanted cucurbits and other vegetable crops in the same manner as others have done with corn gluten meal.

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Section: Mustard Seed Mealmentioning

confidence: 99%

Impact of Mustard Seed Meal Applications on Direct-Seeded Cucurbits and Weed Control

Webber¹,

White²,

Boydston³

et al. 2017

JAS

View full text Add to dashboard Cite

show abstract

“…Amendment with brassica seed meal residue, a byproduct of biodiesel production, controlled nematode pests and diseases in a study of two Washington state apple orchards, and resulted in higher yields compared to fumigated soil (Mazzola et al 2015). In orchard soils, brassica seed meal can also suppress weed growth by modifying resident soil microbial communities (Hoagland et al 2008). Treatments based on organic amendments can be optimized through research that examines their effects singly and in mixtures across different crops and soil types.…”

Section: Organic Amendmentsmentioning

confidence: 99%

Managing for soil health can suppress pests

Hodson¹,

Lewis²

2016

Calif Agr

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A "healthy" soil can be thought of as one that functions well, both agronomically and ecologically, and one in which soil biodiversity and crop management work in synergy to suppress pests and diseases. UC researchers have pioneered many ways of managing soil biology for pest management, including strategies such as soil solarization, steam treatment and anaerobic soil disinfestation, as well as improvements on traditional methods, such as reducing tillage, amending soil with organic materials, and cover cropping. As managing for soil health becomes more of an explicit focus due to restrictions on the use of soil fumigants, integrated soil health tests will be needed that are validated for use in California. Other research needs include breeding crops for disease resistance and pest suppressive microbial communities as well as knowledge of how beneficial organisms influence plant health.

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“…This study reveals the possible indirect allelopathic interaction that results when exposure to noxious chemicals enhances susceptibility of competing plants to microbial pathogens. Allelopathic plants in the Brassicaceae, especially Brassica napus, may also stimulate soil populations of plant pathogens like Pythium (Hoagland et al, 2008), which are expected to reduce the growth of surrounding plants. Mycorrhizal associations also can be modified by allelopathic plants, as shown for Molinia caerulea, which appears to limit growth of an efficient ectomycorrhizal symbiont in Picea abies roots while stimulating growth of a more parasitic symbiont instead (Timbal et al, 1990).…”

Section: Increases In Allelochemical Toxicity Through Microbialmentioning

confidence: 99%

Microbes as Targets and Mediators of Allelopathy in Plants

2012

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Studies of allelopathy in terrestrial systems have experienced tremendous growth as interest has risen in describing biochemical mechanisms responsible for structuring plant communities, determining agricultural and forest productivity, and explaining invasive behaviors in introduced organisms. While early criticisms of allelopathy involved issues with allelochemical production, stability, and degradation in soils, an understanding of the chemical ecology of soils and its microbial inhabitants has been increasingly incorporated in studies of allelopathy, and recognized as an essential predictor of the outcome of allelopathic interactions between plants. Microbes can mediate interactions in a number of ways with both positive and negative outcomes for surrounding plants and plant communities. In this review, we examine cases where soil microbes are the target of allelopathic plants leading to indirect effects on competing plants, provide examples where microbes play either a protective effect on plants against allelopathic competitors or enhance allelopathic effects, and we provide examples where soil microbial communities have changed through time in response to allelopathic plants with known or potential effects on plant communities. We focus primarily on interactions involving wild plants in natural systems, using case studies of some of the world's most notorious invasive plants, but we also provide selected examples from agriculturally managed systems. Allelopathic interactions between plants cannot be fully understood without considering microbial participants, and we conclude with suggestions for future research. Allelopathy and Soil MicrobesAllelopathy, generally, is considered as a form of negative chemical communication between organisms, whereby one participant (the donor) in an interaction produces a compound(s) that is released in the environment in ecologically relevant quantities that negatively impacts the fitness of other participants (the receivers); the effect presumably benefits fitness of the donor. While the concept of allelopathy extends back to at least Theophrastus in the third century B.C., who invoked this phenomenon as an explanatory mechanism of plant growth, abundance, or community structure in natural systems, the concept has fluctuated in popularity over time (see Willis, 2007 for review). Allelopathy often has been subjected to criticisms of ecological relevance that other phenomena, such as resource competition, have not, thus explaining why it has fallen out of favor during certain time periods. However, studies of allelopathy in terrestrial systems have experienced a tremendous "rebirth" in the last 20 years as interest has risen in describing biochemical mechanisms responsible for structuring plant communities, determining agricultural and forest productivity, and explaining invasive behaviors in introduced organisms. More rigorous observational and experimental approaches, along with better analytical techniques, have

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Role of native soil biology in Brassicaceous seed meal-induced weed suppression

Cited by 56 publications

References 31 publications

Impact of Mustard Seed Meal Applications on Direct-Seeded Cucurbits and Weed Control

Impact of Mustard Seed Meal Applications on Direct-Seeded Cucurbits and Weed Control

Managing for soil health can suppress pests

Microbes as Targets and Mediators of Allelopathy in Plants

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