Factors affecting soil microbial biomass and functional diversity with the application of organic amendments in three contrasting cropland soils during a field experiment

Li, Ling; Xu, Minggang; Ali, Mohammad Eyakub; Zhang, Wenju; Duan, Yinghua; Li, Dongchu

doi:10.1371/journal.pone.0203812

Cited by 66 publications

(45 citation statements)

References 69 publications

(99 reference statements)

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“…He et al [50] presented results indicating a reduction in AOA diversity in the soil as a consequence of lowering the soil pH which is caused by the use of nitrogen fertilizers. On the other hand, the addition of organic fertilizers and organic matter resulted in an increase in the AOA population on account of the greater bioavailability of C [51]. In this paper, we present results which indicate a positive effect of using the tested EOM on the diversity of the AOA population.…”

Section: Discussionmentioning

confidence: 67%

Genetic and Metabolic Diversity of Soil Microbiome in Response to Exogenous Organic Matter Amendments

2020

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Loss of organic matter content of cultivated soils is observed in many regions of Europe. The possibility of using organic waste as a soil additive that enriches the soil with organic matter and essential components is important in soil quality protection and waste management. This research concerned the influence of six organic wastes—two industrial composts, three digestates and meat bone meal—on soil microbial properties. The study of functional microbial diversity concerns the determination of the catabolic capacity of bacterial, fungal and anaerobic communities in relation to carbon substrates in metabolic profiling plates (Biolog® ECO, FF, AN (Biolog Inc., Hayward, CA, USA)). The assessment of genetic diversity was made on the basis of analysis of the restriction profile of ammonia-oxidizing archaea. Additionally, soil dehydrogenases activity was determined. The research showed that the type of organic waste used had an influence on the microbiological parameters. The application of exogenous organic matter caused increases in functional and genetic microbial diversity. The nature of the noted changes was short term and periodic. The values of the microbiological parameters in soils with organic waste were similar to those of the control samples. This indicates an improved microbiological balance and stability of the soil environment after the application of exogenous organic matter.

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Section: Discussionmentioning

confidence: 67%

Genetic and Metabolic Diversity of Soil Microbiome in Response to Exogenous Organic Matter Amendments

2020

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“…Differential usages of C-sources were observed for gorse-and Scotch broom-amended soils if compared to control treatments, as indicated by the correspondence analysis separation. Recently, Li et al [45] have confirmed that these changes are measurable using BIOLOG analysis at only one month after the applications of the amendment to the soil. For gorse, the preference for specific carbohydrate substrates like β-methyl-D-glucoside was more clearly linked to control soil samples, whereas the phenolic compounds (C-substrates 18 and 19) were represented close to the foliage-amended soils.…”

Section: Discussionmentioning

confidence: 91%

The Phytotoxic Potential of the Flowering Foliage of Gorse (Ulex europaeus) and Scotch Broom (Cytisus scoparius), as Pre-Emergent Weed Control in Maize in a Glasshouse Pot Experiment

Pardo-Muras

Puig

Souza‐Alonso

et al. 2020

Plants

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In our previous studies, the phytotoxicity of Ulex europaeus (gorse) and Cytisus scoparius (Scotch broom) was demonstrated in vitro and argued to be caused by the release of volatile and water-soluble compounds from fresh plant foliage. In light of these positive results, there was a need to test the effects ex vitro. In this work, gorse and Scotch broom were used as soil amendments in pot experiments in a glasshouse by incorporating slashed plant material into the soil at a ratio of 1% w/w on a dry mass basis. The phytotoxic effects on the emergence and early growth of maize and five accompanying weed species were analyzed, as were the effect on soil fertility and soil community-level physiological profiles. Thirty days after incorporation, significant decreases in weed density of 32.2% and 59.5% were found for gorse and Scotch broom soil amendments, respectively. Gorse soil amendment was notably effective impairing the establishment of Amaranthus retroflexus and diminishing the plant height of Digitaria sanguinalis and Portulaca oleracea. Scotch broom soil amendment was capable of significantly inhibiting the emergence of D. sanguinalis, Convolvulus arvensis, P. oleracea, and A. retroflexus, with a notable reduction of weed biomass. No undesirable side effects on maize crop or soil quality, including microbial activity, were detected. Our results suggest that the incorporation of gorse and Scotch broom foliage is promising for pre-emergent weed control in maize; however, field trials that support and expand these glasshouse results are essential.

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“…One way to determine functional diversity is community level physiological profiling (CLPP) with the application of plates (BIOLOG ® , Hayward, CA, USA) coated with various carbon sources and dedicated to specific groups of microorganisms. As a result, a characteristic and unique utilization pattern of the C-substrates called "metabolic fingerprinting" is obtained [130,131]. For the evaluation of the catabolic abilities of soil bacterial and fungal communities, BIOLOG ECO and BIOLOG FF microplates were used, respectively [132].…”

Section: Community Level Physiological Profiling (Clpp)mentioning

confidence: 99%

The Status of Soil Microbiome as Affected by the Application of Phosphorus Biofertilizer: Fertilizer Enriched with Beneficial Bacterial Strains

Mącik

Gryta

Sas-Paszt

et al. 2020

IJMS

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Regarding the unfavourable changes in agroecosystems resulting from the excessive application of mineral fertilizers, biopreparations containing live microorganisms are gaining increasing attention. We assumed that the application of phosphorus mineral fertilizer enriched with strains of beneficial microorganisms contribute to favourable changes in enzymatic activity and in the genetic and functional diversity of microbial populations inhabiting degraded soils. Therefore, in field experiments conditions, the effects of phosphorus fertilizer enriched with bacterial strains on the status of soil microbiome in two chemically degraded soil types (Brunic Arenosol – BA and Abruptic Luvisol – AL) were investigated. The field experiments included treatments with an optimal dose of phosphorus fertilizer (without microorganisms – FC), optimal dose of phosphorus fertilizer enriched with microorganisms including Paenibacillus polymyxa strain CHT114AB, Bacillus amyloliquefaciens strain AF75BB and Bacillus sp. strain CZP4/4 (FA100) and a dose of phosphorus fertilizer reduced by 40% and enriched with the above-mentioned bacteria (FA60). The analyzes performed included: the determination of the activity of the soil enzymes (protease, urease, acid phosphomonoesterase, β-glucosidase), the assessment of the functional diversity of microorganisms with the application of BIOLOGTM plates and the characterization of the genetic diversity of bacteria, archaea and fungi with multiplex terminal restriction fragment length polymorphism and next generation sequencing. The obtained results indicated that the application of phosphorus fertilizer enriched with microorganisms improved enzymatic activity, and the genetic and functional diversity of the soil microbial communities, however these effects were dependent on the soil type.

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Factors affecting soil microbial biomass and functional diversity with the application of organic amendments in three contrasting cropland soils during a field experiment

Cited by 66 publications

References 69 publications

Genetic and Metabolic Diversity of Soil Microbiome in Response to Exogenous Organic Matter Amendments

Genetic and Metabolic Diversity of Soil Microbiome in Response to Exogenous Organic Matter Amendments

The Phytotoxic Potential of the Flowering Foliage of Gorse (Ulex europaeus) and Scotch Broom (Cytisus scoparius), as Pre-Emergent Weed Control in Maize in a Glasshouse Pot Experiment

The Status of Soil Microbiome as Affected by the Application of Phosphorus Biofertilizer: Fertilizer Enriched with Beneficial Bacterial Strains

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