Effects of organic amendment and tillage on soil microorganisms and microfauna

Treonis, Amy M.; Austin, Erin E.; Buyer, Jeffrey S.; Maul, Jude E.; Spicer, Lori; Zasada, Inga A.

doi:10.1016/j.apsoil.2010.06.017

Cited by 141 publications

(82 citation statements)

References 42 publications

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“…Soil management practices, such as the cover cropping and compost application can be enhanced the biological activity of soil such as bacterial, fungal and actinomycete diversity and populations (Nair and Ngouajio, 2012). Other studies have also shown high soil microbial diversity and populations following manure or compost application (Tu et al, 2006;Treonis et al, 2010). Manure and other organic and inorganic amendments can have numerous positive influences on soil microbial and biochemical properties including soil microbial biomass, activity, and enzymes (Parham et al, 2003;Cordovil et al, 2007;Vineela et al, 2008;Liu et al, 2010).…”

Section: G-1soil)mentioning

confidence: 99%

Microbial communities and their characteristics in a soil amended by nanozeolite and some plant residues: Short time in-situ incubation

Aminiyan

Hosseini

Heydariyan

2018

Eurasian Journal of Soil Science (Ejss)

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Article Info Received : 29.04.2017 Accepted : 08.07.2017 Soil microbial communities and their related characteristics are an important agent for soil fertility, productivity, and sustainability. Also, they are useful indicators of soil quality and life index in agricultural systems. The objectives of this study were the effect of nanozeolite and plant residues on soil microbial communities and their characteristics and also, the assessment of incubation timing on soil microbial properties. Soil microorganisms are very important in the decomposition of plant residues. In this regard, the soil samples were treated by nanozeolite (0, 10 and 30% Weight), Alfalfa and wheat straw (0 and 5% Weight). The treated soil samples were incubated in lab condition for 90 days. The result of this study showed that Bacterial, Fungal, and Actinomycete populations increased by the addition of 30% of nanozeolite and 5% of plant residues, especially alfalfa straw. Also, the addition of nanozeolite and plant residues treatments improved MBC, BR, and SIR as microbial characteristics. These parameters increased after 30 days of starting incubation, then decreased until the 75 th day and finally increased slightly on the 90 th day. In fact, the addition of nanozeolite and plant residues into the soil had positive effects on improvement of carbon pools and increasing carbon sequestration in it. Applied nanozeolite and plant residues in soil, improved carbon pools and increased carbon sequestration in soil. Also the application of nanozeolite and plant residues especially alfalfa straw had positive effects on improvement of soil biological communities and characteristics.

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Section: G-1soil)mentioning

confidence: 99%

Microbial communities and their characteristics in a soil amended by nanozeolite and some plant residues: Short time in-situ incubation

Aminiyan

Hosseini

Heydariyan

2018

Eurasian Journal of Soil Science (Ejss)

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“…2009), and previous studies have shown increases in fungal population density in some cover cropping systems (Schutter et al 2001;Buyer et al 2010). The fact that certain cover crop species have been associated with increases in fungal groups suggests that cover crop selection could play an important role in managing soils for greater fungal dominance.Phospholipid fatty acid (PLFA) analysis has been widely used to assess the composition of microbial communities in agricultural systems and community response to cover crops (Bossio et al 1998;Schutter et al 2001;Buyer et al 2010;Treonis et al 2010;Lehman et al 2012; Wortman et al 2013). Phospholipids are a component of all cellular membranes, and signature phospholipids are found in the membranes of specific microbial groups.…”

mentioning

confidence: 99%

“…In this study we measured soil biological properties in living cover crop stands in order to isolate cover crop effects on microbial communities from Table 2 Signature fatty acids used to identify soil microbial biomarker groups (Buyer et al 2010).…”

mentioning

confidence: 99%

“…MIS Sherlock soft- ] flow rate) and identified using the MIDI PLFAD1 calibration mix and naming table. We also ran random samples on a Clarus 500 GC-MS (Perkin-Elmer, Waltham, Massachusetts, United States) to confirm fatty acid identification following the procedure of Buyer et al (2010).Laboratory Incubation. We conducted a seven day incubation of fresh soil to measure daily respiration rate, an indicator of soil biological activity (Weitzman et al 2014).…”

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confidence: 99%

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Living cover crops have immediate impacts on soil microbial community structure and function

Finney

Buyer²,

Kaye

2017

Journal of Soil and Water Conservation

161

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Cover cropping is a widely promoted strategy to enhance soil health in agricultural systems. Despite a substantial body of literature demonstrating links between cover crops and soil biology, an important component of soil health, research evaluating how specific cover crop species influence soil microbial communities remains limited. This study examined the effects of eight fall-sown cover crop species grown singly and in multispecies mixtures on microbial community structure and soil biological activity using phospholipid fatty acid (PLFA) profiles and daily respiration rates, respectively. Fourteen cover crop treatments and a no cover crop control were established in August of 2011 and 2012 on adjacent fields in central Pennsylvania following spring oats (Avena sativa L.). Soil communities were sampled from bulk soil collected to a depth of 20 cm (7.9 in) in fall and spring, approximately two and nine months after cover crop planting and prior to cover crop termination. In both fall and spring, cover crops led to an increase in total PLFA concentration relative to the arable weed community present in control plots (increases of 5.37 nmol g -1 and 10.20 nmol g -1, respectively). While there was a positive correlation between aboveground plant biomass (whether from arable weeds or cover crops) and total PLFA concentration, we also found that individual cover crop species favored particular microbial functional groups. Arbuscular mycorrhizal (AM) fungi were more abundant beneath oat and cereal rye (Secale cereale L.) cover crops. Non-AM fungi were positively associated with hairy vetch (Vicia villosa L.). These cover crop-microbial group associations were present not only in monocultures, but also multispecies cover crop mixtures. Arable weed communities were associated with higher proportions of actinomycetes and Gram-positive bacteria. Soil biological activity varied by treatment and was positively correlated with both the size and composition (fungal:bacterial ratio) of the microbial community. This research establishes a clear link between cover crops, microbial communities, and soil health. We have shown that while cover crops generally promote microbial biomass and activity, there are species-specific cover crop effects on soil microbial community composition that ultimately influence soil biological activity. This discovery paves the way for intentional management of the soil microbiome to enhance soil health through cover crop selection.Key words: cover crops-phospholipid fatty acid analysis-soil biological activity-soil health-soil microbial communities Building healthy, resilient soils is a central focus of US soil conservation programs, and cover cropping is a core strategy promoted to enhance physical, chemical, and biological properties of managed soils (Lehman et al. 2015a; USDA NRCS 2012). While considerable research has shown that including cover crops in a crop rotation influences soil biology, understanding of cover crop species-specific effects on soil microbial community size, compo...

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“…Changes in soil food webs can affect mineralization of nutrients and decomposition of organic matter (Wardle, 2002;Li et al, 2012). Therefore, understanding the changes in microflora and microfauna, and their linking across contrasting soil managements could lead to a precise regulation of soil organisms for sustainable agroecosystems (Treonis et al, 2010;Wall et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Conservation tillage positively influences the microflora and microfauna in the black soil of Northeast China

Zhang

Lü

et al. 2015

Soil and Tillage Research

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Effects of organic amendment and tillage on soil microorganisms and microfauna

Cited by 141 publications

References 42 publications

Microbial communities and their characteristics in a soil amended by nanozeolite and some plant residues: Short time in-situ incubation

Microbial communities and their characteristics in a soil amended by nanozeolite and some plant residues: Short time in-situ incubation

Living cover crops have immediate impacts on soil microbial community structure and function

Conservation tillage positively influences the microflora and microfauna in the black soil of Northeast China

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