Chemical and microbiological characterization of Cambisols, Luvisols and Stagnosols

Růžek, L.; Růžková, M.; Voříšek, K.; Kubát, J.; Friedlová, M.; Mikanová, O.

doi:10.17221/35/2009-pse

Cited by 11 publications

(10 citation statements)

References 12 publications

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“…-Available organic carbon (C-K 2 SO 4 ) was extracted from mGC samples by 0.5 mol/l K 2 SO 4 (Růžek et al 2009). -Acceptable nutrients:…”

Section: Methodsmentioning

confidence: 99%

“…= 600 W, 2 × 67 s, 100 g d.m. = 12 × 1 g of mGC + 1 × 88 g of field-moist soil) and microwave soil extracts digestion (800 J/ml = 250 W, 77 s, 24 ml) with colorimetric determination at 590 nm (Růžek et al 2009). -Basal respiration (BR; mg C/kg d.m./h): CO 2 -C captured with absorbent (2.5 ml NaOH; 1 mol/l) was determined by titration with 0.1 mol/l HCl after controlled incubation (20 h at 29°C); ).…”

Section: Methodsmentioning

confidence: 99%

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Biodegradation of composites based on maltodextrin and wheat B-starch in compost

Růžek¹,

Růžková²,

Koudela³

et al. 2015

Hort. Sci. (Prague)

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Růžek L., Růžková M., Koudela M., Bečková L., Bečka D., Kruliš Z., Šárka E., Voříšek K., Ledvina Š., Šalounová B., Venyercsanová J. The study is focused on the microbial and chemical parameters of green compost in which composites based on acetylated wheat B-starch and maltodextrin (patented procedure) were biodegraded and also on the parameters of lettuce grown on this compost before and after the biodegradation. With a load of up to 1 g of composites per 1 l of compost, and with a storage period of 0, 7-14, 15-20 and 21-147 days, mixture of compost wiped off the surface both of wellpreserved composites and of the immediate surroundings of their residues was evaluated. Microbial biomass, basal respiration (BR), metabolic quotient, dehydrogenase and arylsulfatase activity (ARS) and the parameters of the lettuce growth on this compost did not show any negative changes. On the contrary acetylated wheat B-starch and maltodextrin stimulated both ARS and BR. ARS showed the most rapid onset among all tests. The height of the aboveground parts of the lettuce (Lactuca sativa L. var. capitata) grown on green compost was significantly better, compared to commercial peat-based substrates.

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“…-Available organic carbon (C-K 2 SO 4 ) was extracted from mGC samples by 0.5 mol/l K 2 SO 4 (Růžek et al 2009). -Acceptable nutrients:…”

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Biodegradation of composites based on maltodextrin and wheat B-starch in compost

Růžek¹,

Růžková²,

Koudela³

et al. 2015

Hort. Sci. (Prague)

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show abstract

“…Carbon of soil organic matter (C org ) was measured using a microwave method with an equivalent amount of moist substrate corresponding to 0.03 g DM (Růžek et al 2012). Microbial biomass carbon (MBC-MW) was analysed using the microwave irradiation method (Růžek et al 2009), basal respiration (BR), metabolic quotient (BR/MBC) × 1000, respiratory ratios NR/BR and NGR/BR according to Růžek et al (2012).…”

Section: Methodsmentioning

confidence: 99%

Composites containing acetylated wheat B-starch for agriculture applications

Šárka¹,

Kruliš²,

Kotek³

et al. 2012

PLANT SOIL ENVIRON

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Native and acetylated B-starch was used in biodegradable films after blending with either poly-(ε-caprolactone) (PCL) or ethylene vinyl acetate copolymer (EVA). The following mechanical characteristics of prepared films were derived from the stress-strain curves: Young modulus, yield stress, stress-at-break and strain-at-break. Acetylation of starch molecules in the composites reduced the degradation rate in compost. Optical microscopy, combined with the image analysis system NIS-Elements completed with extended depth of focus (EDF) module, was used to study the PCL/starch and EVA/starch films surface morphology during composting. Parameters of the compost used for film exposition were measured.

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“…(Růžek et al 2009): non-sterilized (C-K 2 SO 4 ), and heated (C-K 2 SO 4 -RHD). In all cases an equivalent of 7.14 g DM was placed in a 50 mL polypropylene vial (DigiTUBEs, SCP Science) and moistened with 2 mL DW.…”

Section: Methodsmentioning

confidence: 99%

Slit seeded grass-legume mixture improves coal mine reclamation

Růžek¹,

Růžková²,

Voříšek³

et al. 2012

PLANT SOIL ENVIRON

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Slit seeding (sowing into shallow cuts to the soil surface) was evaluated on coal mine reclamation in the North Bohemian Brown Coal Basin (Czech Republic) between 2001 and 2008, on plots both with and without biodegradable waste enrichment. Prior to experimentation (in 2000, once) were applied dehydrated, anaerobically digested wastewater sludge, 200 (41) t/ha fresh mass (dry mass), together with paper mill waste, 400 (131) t/ha, and bark substrate Envima, 400 (145) . All slit seeded species proliferated better on surface strip mine deposits without biodegradable waste enrichment and brought beneficial changes in a number of parameters over the ensuing five years due to lower competition with native expanding eutrophic species including Calamagrostis epigejos L.; Cardaria draba L.; Urtica dioica L.; and Galium aparine L. Available organic carbon (extracted from field-moist soil by 0.5 mol/L K 2 SO 4 ) showed a notable tendency toward values 10-66 mg C/kg DM (dry mass), microbial biomass 302-1131 mg C/kg DM, basal respiration 3.9-5.8 mg C/kg DM/h, and metabolic quotient (basal respiration/microbial biomass carbon) × 1000 = 5.2-7.9.

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Chemical and microbiological characterization of Cambisols, Luvisols and Stagnosols

Cited by 11 publications

References 12 publications

Biodegradation of composites based on maltodextrin and wheat B-starch in compost

Biodegradation of composites based on maltodextrin and wheat B-starch in compost

Composites containing acetylated wheat B-starch for agriculture applications

Slit seeded grass-legume mixture improves coal mine reclamation

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