Arbuscular mycorrhizal fungi - An underground resource for sustainable upland agriculture

Yimyam, Narit; Youpensuk, Somchit; Wongmo, Jumnian; Kongpan, A; Rerkasem, Benjavan; Rerkasem, Kanok

doi:10.1080/14888386.2008.9712885

Cited by 5 publications

(3 citation statements)

References 3 publications

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“…For instance, M. denticulata is associated with up to 30 species of mycorrhizal fungi, critical to nutrient cycling (Youpensuk et al 2005;Yimyam et al 2008). This association highlights the complex interactions that add another layer of biodiversity in swidden systems.…”

Section: The Fallow Phasementioning

confidence: 99%

Consequences of Swidden Transitions for Crop and Fallow Biodiversity in Southeast Asia

et al. 2009

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Swidden agriculture, once the dominant form of land use throughout the uplands and much of the lowlands of Southeast Asia, is being replaced by other land uses. While change and adaptation are inherent to swiddening, the current rapid and widespread transitions are unprecedented. In this paper we review some recent findings on changes in biodiversity, especially plant diversity at various scales, as swidden farming is replaced by other land uses. We focus particularly on two areas of Southeast Asia:northern Thailand and West Kalimantan. We examine actual and potential changes in the diversity of crops that characterize regional swidden systems, as well as that of the spontaneously occurring plants that appear in swidden fields and fallows. Severe declines in plant diversity have been observed in most areas and at most spatial scales when swidden is replaced by permanent land use systems. However, shifts away from swidden agriculture do not invariably result in drastic declines or losses of biological diversity, but may maintain or even enhance it, particularly at finer spatial scales. We suggest that further research is necessary to understand the effects of swidden transitions on biodiversity.

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Section: The Fallow Phasementioning

confidence: 99%

Consequences of Swidden Transitions for Crop and Fallow Biodiversity in Southeast Asia

et al. 2009

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“…This small evergreen species has been described in various studies as a fallow-enrichment species , mainly on account of its symbiotic association with mycorrhizal fungi, which are essential for soil nutrient accumulation (Youpensuk et al, 2005;Yimyam et al, 2008). Fields established on fallow land with a dense cover of M. denticulata support a high productivity of upland rice because of the concentration of nutrients in the fallow biomass, particularly N and K which are released and made available by burning (Yimyam et al, 2003).…”

Section: Combining Traditional Knowledge With Forest Restoration Sciementioning

confidence: 99%

Fallow to forest: Applying indigenous and scientific knowledge of swidden cultivation to tropical forest restoration

Wangpakapattanawong

Kavinchan

Vaidhayakarn

et al. 2010

Forest Ecology and Management

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“…Nutrient accumulation and recycling by M. denticulara, on the other hand, is highly dependent on its symbiotic association with naturally occurring arbuscular mycorrhizal fungi (AMF) (Youpensuk et al, 2005b). This diverse and abundant native population of arbuscular mycorrhizal fungi; AMF has been shown to directly improve growth of upland rice and other crops in the system, including job's tears and sorghum (Wongmo 2008), as well as tree crops such as rubber, coffee and citrus (Yimyam et al, 2008). It is possible that cowpea growing on acidic low P soil may also directly benefit from association with AMF, which are well known for their role in improving P nutrition of the host plant (Marschner, 1995).…”

Section: Introductionmentioning

confidence: 99%

Alleviating acid soil stress in cowpea with a local population of arbuscular mycorrhizal fungi

Kongpun¹,

Dell²,

Rerkasem³

2011

Afr. J. Biotechnol.

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In Huai Teecha village in Northern Thailand, local cowpeas were grown on acidic low phosphorus soil without stress symptoms. Arbuscular mycorrhizal fungi from this system have been found to promote growth of many crops but there is no information about their benefit in cowpea. In a field experiment, three improved cowpea lines (ITD-1131, Ubon Ratchathani and IT90K-227-2) and a local line (Teecha 1) were grown in 3 farmer's fields on acid low P soils. Roots of the cowpea lines were all heavily colonized by the fungi and their leaf P was within the sufficient range. In a pot experiment, the cowpea line Ubon Ratchathani was grown in acidic and non acidic (pH 5 and 6.7, respectively) soil with three rates of phosphorus (50, 104 and 141 mg phosphorus pot-1) with and without arbuscular mycorrhizal fungi inoculation. Total dry weight of inoculated cowpea was not affected by soil acidity while it was depressed in un-inoculated plants. The fungi increased total dry weight at 50 and 104 mg phosphorus ha-1 but had no effect at 141 mg phosphorus pot-1. Therefore, the fungi had been shown to enhance P uptake by cowpea roots, which resulted in direct benefit to cowpea growth in acidic low P soil.

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Arbuscular mycorrhizal fungi - An underground resource for sustainable upland agriculture

Cited by 5 publications

References 3 publications

Consequences of Swidden Transitions for Crop and Fallow Biodiversity in Southeast Asia

Consequences of Swidden Transitions for Crop and Fallow Biodiversity in Southeast Asia

Fallow to forest: Applying indigenous and scientific knowledge of swidden cultivation to tropical forest restoration

Alleviating acid soil stress in cowpea with a local population of arbuscular mycorrhizal fungi

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