Managing compost stability and amendment to soil to enhance soil heating during soil solarization

Simmons, Christopher W.; Guo, Hongyun; Claypool, Joshua T.; Marshall, Megan N.; Perano, Kristen M.; Stapleton, J. J.; VanderGheynst, Jean S.

doi:10.1016/j.wasman.2013.01.015

Cited by 56 publications

(61 citation statements)

References 21 publications

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“…Opportunistic species of nematodes and microbes quickly re-colonize after treatment and many of these groups are antagonistic to pests (Gamliel and Stapleton 1993;Mazzola et al 2012;Simmons et al 2014;Stapleton 2000), resulting in very different microbial communities than those found in either fumigated or nonfumigated soil (Drenovsky et al 2005;Shennan et al 2013). For ASD, steam and solarization, researchers continue to explore using different amendments (e.g., rice bran, brassica seed meal) to enhance pest control and optimize the carbon sources used to control specific pathogens (Fennimore et al 2014;Shennan et al 2013;Shennan et al 2014;Simmons et al 2013). …”

Section: Soil Solarization Steam and Asdmentioning

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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Section: Soil Solarization Steam and Asdmentioning

confidence: 99%

Managing for soil health can suppress pests

Hodson¹,

Lewis²

2016

Calif Agr

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“…First, the additional microbiota and nutrient source associated with the amendment can enhance soil heating through biological heating. For example, amending soil with compost and organic matter yielded temperature increases between 2 and 5ºC greater than nonamended soil when both were solar heated (Achmon et al, 2015;Simmons et al, 2013;Simmons et al, 2016). Secondly, anaerobic microbial fermentation of organic matter can result in the production of organic compounds such as volatile fatty acids (VFAs) that accumulate due to the physical barrier of the plastic tarp.…”

Section: Soil Biosolarization (Sbs) Can Be a Sustainable Soil Pest Comentioning

confidence: 99%

“…Like compost, which has been shown to be an effective inoculum for biosolarization (Simmons et al, 2013), digestates contain robust, anaerobic, organic matter-degrading microbial communities that may also tolerate biosolarization. Studies have shown that SBS can increase the proportion of facultative and obligate anaerobic microorganisms in the soil (Yao et al, 2016).…”

Section: Soil Biosolarization (Sbs) Can Be a Sustainable Soil Pest Comentioning

confidence: 99%

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Comparison of soil biosolarization with mesophilic and thermophilic solid digestates on soil microbial quantity and diversity

Fernández-Bayo

Achmon

Harrold

et al. 2017

Applied Soil Ecology

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Soil biosolarization (SBS) is a pest control technique that combines passive solar heating and fermentation of amended organic matter. The extreme soil conditions generated during SBS could decrease microbial biomass and restructure the soil microbiome, which could impact soil quality. Digestates from anaerobic digesters may harbor microbial communities tolerant of the oxygen, moisture, and temperature stresses encountered during SBS as these conditions may also occur in digesters.Digestate microbial communities may contribute to soil fermentation during SBS and affect organic matter turnover in soils treated with SBS. The objective of this study was to assess the effect of SBS on soil microbial diversity and quantity when solid digestates from thermophilic (TD) and mesophilic (MD) anaerobic digesters were used as soil amendments. In the soils amended with TD, communities showed the greatest divergence from the initial soil state whereas MD amendment resulted in a microbiome more similar to the non-amended soil. The microbial biomass of the biosolarized soils was significantly greater than the non-amended, solar-heated soil. The microbial biomass in the biosolarized soils was dominated by K-strategic or "native" species.Solar heating of the non-amended soil mainly affected "native" species, leading to conditions where other opportunistic species become more dominant. Further studies are needed to elucidate whether the persistent microbes in the soil are benign or pathogenic and to understand their roles in pest inactivation and nutrient cycling during and following SBS.

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“…The pesticidal efficacy of solarization is often complemented by amendment with organic matter (Stapleton 2000;Schönfeld et al 2003;Simmons et al 2013). The effectiveness of soil solarization against many pathogens, weeds and soil arthropods in the cultivation of various crops has been well demonstrated in both open fields and greenhouses (Stapleton 2000).…”

Section: Introductionmentioning

confidence: 99%

Impact of soil solarization on the ciliate community structure of a greenhouse soil

Murase

Shinohara

Yokoe

et al. 2015

Soil Science and Plant Nutrition

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Soil solarization is an ecologically friendly method of controlling various plant pathogens and pests, but also affects non-pathogenic members of the soil biota. Here, we studied the impact of soil solarization on the community structure of soil ciliates using a culture-independent molecular approach, namely denaturing gradient gel electrophoresis (DGGE) of targeted 18S rRNA gene fragments. Greenhouse soil with added organic fertilizers was solarized for 33 days at an average temperature of 47-48°C. Solarization caused a drastic change in the ciliate community. The variation between replicates was large, which suggested that the distribution of ciliates was spatially heterogeneous in the soil, probably due to their decreased numbers. In contrast, non-solarized soil had a stable and homogeneous ciliate community during the experimental period. In solarized soil, most of the original ciliate community recovered 76 days after solarization. Sequence analysis of DGGE fragments indicated that both r-selected and K-selected species of ciliates were affected by solarization but recovered with time after solarization. Our results demonstrated both the vulnerability and resilience of the ciliate community to soil solarization and also the utility of using molecular-based analysis of ciliate communities as bioindicators of soil stress caused by solarization.

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Managing compost stability and amendment to soil to enhance soil heating during soil solarization

Cited by 56 publications

References 21 publications

Managing for soil health can suppress pests

Managing for soil health can suppress pests

Comparison of soil biosolarization with mesophilic and thermophilic solid digestates on soil microbial quantity and diversity

Impact of soil solarization on the ciliate community structure of a greenhouse soil

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