Soil microbial dynamics in organic (biodynamic) and integrated apple orchards

被引：8

作者：

B. P. Bougnom

B. Greber

I. H. Franke-Whittle

C. Casera

H. Insam

机构：

[1] Institute of Microbiology, University of Innsbruck, 6020 Innsbruck

[2] Laboratory of Microbiology, Department of Biochemistry, University of Yaounde 1, Yaounde

[3] Research Centre Laimburg, 39040 Posta Ora, Bolzano, Vadena

来源：

Organic Agriculture | 2012年 / 2卷 / 1期

关键词：

Biodynamic farming; organic farming; apple orchards; Microarray; Microbial biomass; Microbial community;

D O I：

10.1007/s13165-012-0020-0

中图分类号：

学科分类号：

摘要：

Biodynamic (organic) and integrated apple orchards can differ in their soil chemical and microbiological properties which may have implications for disease control and long-term soil fertility. Soil samples were collected from three different apple orchards (each with biodynamic and integrated plots) during three different seasons. Physical and chemical characteristics of the soils under the two management systems did not show clear differences. Basal respiration and microbial biomass were higher in organic farms, while the metabolic quotient in organic farms was lower (or equal in one case) to that of integrated farms. There were also seasonal variations. Principal component analysis of the DGGE banding patterns of dominant fungal communities revealed no influence of the farming practices. Analysis of the bacterial communities with the COMPOCHIP microarray showed that certain probes targeting bacteria known to be degraders of biocides were predominantly found in integrated farming plots, while no difference between the two management practices concerning the presence of plant growth promoting rhizobacteria was evident. In conclusion, despite the reduced use of chemicals in integrated farming (compared to conventional), soil microbial properties (CO2 production and biomass) were different to those found in biodynamic farming, while the microbial spectrum did not significantly change. © 2012 Springer Science & Business Media BV.

引用

页码：1 / 11

页数：10

共 48 条

[1]

Albiach R., Canet R., Pomares F., Ingelmo F., Organic matter components and aggregate stability after the application of different amendments to a horticultural soil, Bioresour Technol, 76, pp. 125-129, (2001)

[2]

Anderson T.H., Domsch K.H., The metabolic quotient for CO<sub>2</sub> (qCO<sub>2</sub>) as a specific activity parameter to assess the effects o environmental conditions such as pH on the microbial biomass of forest soils, Soil Biol Biochem, 25, pp. 393-395, (1993)

[3]

Arrault S., Desaint S., Catroux C., Semon E., Mougin C., Fournier J.C., Isolation and characterization of efficient isoxaben-transforming Microbacterium sp strains from four European soils, Pest Manag Sci, 58, pp. 1229-1235, (2002)

[4]

Bieszkiewicz E., Boszczyk-Maleszak H., Wlodarczyk A., Horoch M., Studies on the effect of inoculation of activated sludge with bacteria actively degrading hydrocarbon on the biodegradation of petroleum products, Acta Microbiol Pol, 51, pp. 285-292, (2002)

[5]

Birkhofer K., Bezemer T.M., Bloem J., Bonkowski M., Christensen S., Dubois D., Ekelund F., Fliessbach A., Gunst L., Hedlund K., Mader P., Mikola J., Robin C., Setala S., Tatin-Froux V., der Putten W.H., Scheu S., Long-term organic farming fosters below and aboveground biota: implications for soil quality biological control and productivity, Soil Biol Biochem, 40, pp. 2297-2308, (2008)

[6]

Bohme L., Langer U., Bohme F., Microbial biomass, enzyme activities and microbial community structure in two European long-term field experiments, Agric Ecosyst Env, 109, pp. 141-152, (2005)

[7]

Buckley D.H., Schmidt T.M., Diversity and dynamics of microbial communities in soils from agro-ecosystems, Environ Microbiol, 5, pp. 441-452, (2003)

[8]

Canali S., Di Bartolomeo E., Trinchera A., Et al., Effect of different management strategies on soil quality of citrus orchards in southern Italy, Soil Use Manag, 25, pp. 34-42, (2009)

[9]

Carpenter-Boggs L., Reganold J.P., Kennedy A.C., Biodynamic preparations: short-term effects on crops, soils, and weed populations, Am J Altern Agric, 15, pp. 110-118, (2000)

[10]

Chandler D.P., Brockman F.J., Fredrickson J.K., Use of 16S rDNA clone libraries to study changes in a microbial community resulting from ex situ perturbation of a subsurface sediment, FEMS Microbiol Rev, 20, pp. 217-230, (1997)

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