The effects of herbicides on soil chemical and soil microbial characteristics of riparian fynbos ecosystems

Soils were sampled from the plots with four variants of fertilisation: Nil – without fertilisation, NPK – mineral fertilisation, FYM – farmyard manure, FYM + NPK – farmyard manure with mineral fertilisation, and two variants of crop rotation: field IV – classical 9-year crop rotation, field B – 2-year rotation of alternative growing. Determination of urease, CFU of Azotobacter spp. and potential nitrogenase activity was conducted during the period 1999–2004. The urease activity was positively affected by manure fertilisation (FYM) and by the combination of FYM + NPK. The statistically significantly highest counts of Azotobacter spp. and the highest nitrogenase activity were determined on field B in variants FYM and FYM + NPK. The results show that there was a higher amount of accessible nitrogen present on field IV than on field B. This might explain the lower counts of Azotobacter spp. and therefore the lower nitrogenase activity. According to our results, activity of urease, CFU of Azotobacter spp. and potential nitrogenase activity are very closely connected with N inputs.

Download Full-text

The impact of windthrow and fire disturbances on selected soil properties in the Tatra National Park

Soil and Water Research ◽

10.17221/9/2008-swr ◽

2008 ◽

Vol 3 (Special Issue No. 1) ◽

pp. S74-S80 ◽

Cited By ~ 16

Author(s):

E. Gömöryová ◽

K. Střelcová ◽

J. Škvarenina ◽

J. Bebej ◽

D. Gömöry

Keyword(s):

Microbial Biomass ◽

Microbial Activity ◽

National Park ◽

Soil Microbial Activity ◽

N Mineralisation ◽

Soil Microbial ◽

Microbial Characteristics ◽

Fire Disturbances ◽

Tatra National Park ◽

The Impact

: In November 2004, forest stands in the Tatra National Park (TANAP) were affected by windthrow and in July 2005, the wildfire broke out on a part of the affected area. The objective of this study is to evaluate the impact of the windthrow and fire disturbances on soil microbial activity. Basal and potential soil respiration, N-mineralisation, catalase activity, soil microbial biomass, and cellulase activity were measured in soil samples taken from the A-horizon (depth of 0–10 cm) along 100 m transects established on 4 plots (reference site, burnt, non-extracted, and extracted sites) in October 2006. Some soil microbial characteristics exhibited a high spatial variability, especially microbial biomass and N-mineralisation. Significant differences in soil microbial characteristics (especially basal soil respiration and catalase activity) between plots were found. Generally, the highest microbial activity was revealed on the plot affected by fire. Soil microbial activity was similar on the extracted and non-extracted sites.

Download Full-text

Impacts on soil microbial characteristics and their restorability with different soil disinfestation approaches in intensively cropped greenhouse soils

Applied Microbiology and Biotechnology ◽

10.1007/s00253-019-09964-z ◽

2019 ◽

Vol 103 (15) ◽

pp. 6369-6383 ◽

Cited By ~ 4

Author(s):

Tianzhu Meng ◽

Gaidi Ren ◽

Guangfei Wang ◽

Yan Ma

Keyword(s):

Soil Disinfestation ◽

Soil Microbial ◽

Microbial Characteristics ◽

Greenhouse Soils

Download Full-text

Indication of Importance of Including Soil Microbial Characteristics into Biotope Valuation Method

Sustainability ◽

10.3390/su8030253 ◽

2016 ◽

Vol 8 (3) ◽

pp. 253 ◽

Cited By ~ 7

Author(s):

Josef Trögl ◽

Jana Pavlorková ◽

Pavla Packová ◽

Josef Seják ◽

Pavel Kuráň ◽

...

Keyword(s):

Soil Microbial ◽

Valuation Method ◽

Microbial Characteristics

Download Full-text

Study on Soil Microbial Characteristics of Elsholtzia harchowensis in Copper Mine

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.919-921.2174 ◽

2014 ◽

Vol 919-921 ◽

pp. 2174-2177

Author(s):

Shui Ying Xiong ◽

Jia Kang Huangfu ◽

Shen Wei Wang ◽

Mu Qing Qiu

Keyword(s):

Soil Microbial Biomass ◽

Carbon Sources ◽

Basal Respiration ◽

Control Test ◽

Soil Microbial Community Structure ◽

Copper Mine ◽

Soil Microbial ◽

Microbial Characteristics ◽

Metal Element ◽

Microbial Characteristic

In this paper, soil microbial characteristic of Elsholtzia harchowensis in copper mine were reported. The results indicated that metal element contents of Elsholtzia harchowensis were: Cu>Zn>Pb>Cd. There were significant correlations in Cu contents between Elsholtzia harchowensis and soil in copper mined tailings region. The Elsholtzia harchowensis possessed obviously different soil microbial features. The intensiver in microbial basal respiration strength, and higher microbial ecophysiological parameters, but lower in soil microbial biomass. The results showed that soil microbial community structure was obviously changed in the Elsholtzia harchowensis system, and much more consumed rapidly carbon sources, but the lower in the ratio of utilization compared with the control test.

Download Full-text

Long-term mineral fertilization impact on chemical and microbiological properties of soil and Miscanthus × giganteus yield

Plant Soil and Environment ◽

10.17221/890/2013-pse ◽

2014 ◽

Vol 60 (No. 3) ◽

pp. 117-122 ◽

Cited By ~ 5

Author(s):

W. Stępień ◽

Górska EB ◽

S. Pietkiewicz ◽

Kalaji MH

Keyword(s):

Heterotrophic Bacteria ◽

Growth And Yield ◽

Mineral Fertilization ◽

Soil Microbial ◽

Miscanthus Giganteus ◽

Microbial Characteristics ◽

The Impact ◽

Properties Of Soil ◽

Microbiological Properties

This experimental work was undertaken to assess the effect of various fertilization regimes (CaNPK, NPK, CaPK, CaPN, CaKN and Ca) and different soil properties on growth and yield of Miscanthus plants and to check the impact of this plant on soil microbial characteristics. Field experiment was set up in 2003 on a long-term fertilization experiment, which had been established since 1923. Miscanthus giganteus response to high soil acidity and deficiency of N, P and K was investigated. Some physico-chemical and microbiological properties of soil samples were estimated and microbial characteristics of soil were conducted to investigate the number of the following microorganisms: heterotrophic bacteria, microscopic fungi, and some diazotrophic bacteria. Obtained results showed that, the highest yield of Miscanthus was obtained from the field fertilized with the CaNPK; while the lowest one was found for plants grown without nitrogen (CaPK). The high acidity of soil and small amount of phosphorus did not affect the yields in the NPK and CaKN combinations as compared with CaNPK one. The experiments showed that Miscanthus giganteus responded positively to mineral fertilization, especially with nitrogen. The rhizosphere of Miscanthus plants provides a suitable environment for the growth and development of microorganisms, in contrast to the non-rhizosphere zone.

Download Full-text