Microbial biomass, activity, and community structure in horticultural soils under conventional and organic management strategies

Ge, Tida; Chen, Xiaojuan; Yuan, Hang; Li, Baozhen; Zhu, Huiling; Peng, Ping; Li, Kelin; Jones, Davey L.; Wu, Jinshui

doi:10.1016/j.ejsobi.2013.07.005

Cited by 54 publications

(37 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The relatively high total PLFA levels in our G plots (Table 4) indicates high microbial biomass; it has been shown that organicallymanaged systems promote the microbial biomass (Ge et al, 2013;Dong et al, 2014;Tobias et al, 2016) through covering the crops and C enhanced the soil nutrients. The fungal community is more or less similar in both G and N group's soil treatment.…”

Section: Discussionmentioning

confidence: 98%

“…Followed by, highly positive correlations are identified between the electrical conductivity EC, total heat releasing Q T and growth rate constant k. This also supports the research hypothesis that the green house (G) soil contains more microbial biomass than the open field (N) soil. Several studies have documented that high organic matter increases the soil microbial population (Belay et al, 2002;Fujii et al, 2007;Shen et al, 2010;Ge et al, 2013;Tobias et al, 2016). The bacterial population and the actinomycetes in groups G and N differed significantly.…”

Section: Discussionmentioning

confidence: 99%

“…Greenhouse cultivation is dependent on fertilization and alters the soil properties (e.g., the selection and amount of fertilizers) (Table 1) ( Ge et al 2013;Barros et al, 2016b). The EC values in the greenhouse soil are higher than those in the open-field soil, which can be attributed to the fact that there was no soil leaching due to rainfall that occurred under the greenhouse conditions, and the evaporation of the soil water resulted in salt accumulation (Shrestha, 2006).…”

Section: Discussionmentioning

confidence: 99%

“…It is well-known that phospholipids fatty acids are the key component of all the microbe's membrane, and their fatty acid ester-linked side chains and their polarity will vary from eukaryotes and prokaryotes (Ge et al, 2013;Tobias et al, 2016). Therefore, to overcome the selective problems in microbial culture techniques, the PLFA analysis was widely used to determine the soil microbial community (Dong et al, 2014).…”

mentioning

confidence: 99%

See 3 more Smart Citations

Simple heat profiles and biogeochemical patterns for analysis the influence on soil microbial community of plastic-greenhouse and open field condition

et al. 2018

View full text Add to dashboard Cite

The diversity of the soil microbial community is remarkably sensitive to different cropping techniques. To examine the effects of cultivation in a greenhouse on the soil microbial activity and diversity, we collected soil samples from vegetable crops continuously grown in a plastic greenhouse (G) and an open field (N). Heat profiling was obtained using microcalorimeter in the presence of different carbon sources. Power time curves were recorded after glucose and ammonium sulphate supplementation. The total heat release QT (Jg-1), maximum heat flow Pmax (μW) and growth rate constant k (h-1) are higher in G treatment group than the in N treatment group. On the other hand, the time (tmax) to reach the peak heat flow is lower in G treatment group compared to N treatment group, as is cell specific heat rate JQ/N (J cell-1). Sample G1 has the highest Pmax (1246.07 μW) and the lowest tmax (11.86 h); in contrast, sample N5 has the lowest Pmax (411.03 μW) and the highest tmax (21.78 h). The microbial community in the soil was estimated from phospholipid fatty acid (PLFA) biomarkers analysis and a viable count, followed by a subsequent determination of the physicochemical parameters. The total average PLFA concentration range is found as 129.76 - 142.54 nmol g-1. Both thermodynamics properties and PLFA concentration was are significantly greater in G1, G2 and G3 treatment than in the other two (N5 & N6) management systems (P < 0.05). Combination of both thermodynamic and PLFA profiling determines that the microbial population is higher in the soil from the greenhouse fertilization than from the open field cultivation. This novel approach could be applicable to a better understanding of (i) the changes in the soil microbial community in green house and open field cultivation practices, and (ii) the relationship between physicochemical properties and soil microbial community’s diversity. Moreover, this would be a notable technique for the decision maker to choose the potential cultivation method for sustainable green-food development program.

show abstract

Section: Discussionmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Simple heat profiles and biogeochemical patterns for analysis the influence on soil microbial community of plastic-greenhouse and open field condition

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Unsuitable use of farmland and management strategies can harm the soil microbial community, and this is an important issue due to the fact that healthy microbial communities are essential to a sustainable agricultural ecosystem, because microorganisms mediate continuously the process of nutrient transformation (Ge et al, 2013). However, changes have been observed in soil microbial communities due to factors such as the use of fertilizers, cultivated plant species, the use of pesticides, tillage practices and the use of organic or conventional agricultural management strategies (Wakelin et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Priming Effect Induced by the Use of Different Fertilizers on Soil Functional Diversity

Onica¹,

Vidican²,

Stoian³

et al. 2017

UASVMCN-AGR

View full text Add to dashboard Cite

Agricultural practices, such as the use of fertilizers, can change the structure and function of soil microbial community. Monitoring and assessing the soil microbiota and its dynamics related to different factors can be a powerful tool for understanding basic and applied ecological contexts. The main objective of this paper was to assess the changes of carbon turnover rate and the microbial metabolic activity, when different types of fertilizers were used, process called priming effect. A microcosm experiment was designed and performed under controlled temperature and humidity and the soil samples were analyzed using the MicroResp technique. Results show that the integration in soil of different carbon sources, such as green manure, can lead to a positive priming effect and integration of mineral fertilizers can lead to negative priming effect. The carbon sources with the highest respiratory activity were α-ketoglutaric acid, malic acid, oxalic acid, citric acid, while the lowest respiratory activity was obtained in case of arginine.

show abstract

Organic Fertilization in Traditional Mediterranean Grapevine Orchards Mediates Changes in Soil Microbial Community Structure and Enhances Soil Fertility

et al. 2016

View full text Add to dashboard Cite

Soil microbial populations and their functions related to nutrient cycling contribute substantially to the regulation of soil fertility and the sustainability of agroecosystems. A field experiment was performed to assess the medium-term effect of a mineral fertilizer and two organic fertilization systems with different nitrogen sources on the soil microbial community biomass, structure, and composition (phospholipid fatty acids, pattern, and abundance), microbial activity (basal respiration, dehydrogenase, protease, urease, β-glucosidase, and total amount of phosphomonoesterase activities), and physical (aggregate stability) and chemical (total organic C, total N, available P and water-soluble carbohydrates) properties in a vineyard under semiarid Mediterranean conditions after a period of 10 years. The three fertilization systems assayed were as follows: inorganic fertilization, addition of grapevine pruning with sheep manure (OPM), and addition of grapevine pruning with a legume cover crop (OPL). Both treatments, OPM and OPL, produced higher contents of total organic carbon, total N, available P, water-soluble carbohydrates, and stable aggregates. The organic fertilization systems increased microbial biomass, shifted the structure and composition of the soil microbial community, and stimulated microbial activity, when compared with inorganic fertilization. The abundances of fungi and G+ bacteria were increased by treatments OPM and OPL, without significant differences between them. Organic and inorganic fertilization produced similar grapevine yields. The ability of the organic fertilization systems for promoting the sustainability and soil biological and chemical fertility of an agroecosystem under semiarid conditions was dependent of the organic N source.

show abstract

Microbial biomass, activity, and community structure in horticultural soils under conventional and organic management strategies

Cited by 54 publications

References 42 publications

Simple heat profiles and biogeochemical patterns for analysis the influence on soil microbial community of plastic-greenhouse and open field condition

Simple heat profiles and biogeochemical patterns for analysis the influence on soil microbial community of plastic-greenhouse and open field condition

Priming Effect Induced by the Use of Different Fertilizers on Soil Functional Diversity

Organic Fertilization in Traditional Mediterranean Grapevine Orchards Mediates Changes in Soil Microbial Community Structure and Enhances Soil Fertility

Contact Info

Product

Resources

About