Determination of organic carbon in soils and fertilizers

Ciavatta, Claudio; Antisari, Livia Vittori; Sequi, P.

doi:10.1080/00103628909368115

Cited by 93 publications

(36 citation statements)

References 6 publications

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“…For all horizons it was determined: (i) active and potential soil reaction (1N KCl), exchangeable acidity (Al, H), basic characteristics of the sorption complex by Kappen (1929) (base content, hydrolytic acidity, cation exchange capacity, base saturation), (iii) total carbon content -Springer-Klee method (Ciavatta et al 1989), (iv) total nitrogen content by Kjeldahl (Kirk 1950), (v) plant available nutrients (P, K, Ca, Mg) by Mehlich III (Mehlich 1984).…”

Section: Methodsmentioning

confidence: 99%

Effects of silver fir (Abies alba Mill.) on the humus forms in Norway spruce (Picea abies (L.) H. Karst.) stands

Podrázský¹,

Vacek²,

Kupka³

et al. 2018

J. For. Sci.

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Podrázský V., Vacek Z., Kupka I., Vacek S., Třeštík M., Cukor J. (2018): Effects of silver fir (Abies alba Mill.) on the humus forms in Norway spruce (Picea abies (L.) H. Karst.) stands. J. For. Sci., 64: 245-250.The effects of silver fir (Abies alba Miller) on the soil compared to Norway spruce (Picea abies (Linnaeus) H. Karsten) were evaluated. Altitude of the study site is 790 m a.s.l., mild slope of 10° facing SW, forest site is spruce-beech on acid soil. The forest floor and top soil horizons (L + F1, F2 + H, Ah) were sampled in 4 replications beneath unmixed Norway spruce and silver fir groups. Comparing the soil-forming effects of both species, few significant differences were found in the Ah horizon -contents of total C, N, exchangeable Al and plant available Ca were higher beneath spruce. The soil improving role of silver fir compared to spruce was confirmed at the studied locality.

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Section: Methodsmentioning

confidence: 99%

Effects of silver fir (Abies alba Mill.) on the humus forms in Norway spruce (Picea abies (L.) H. Karst.) stands

Podrázský¹,

Vacek²,

Kupka³

et al. 2018

J. For. Sci.

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“…Electrical conductivity (EC) and pH were measured in mixtures at a 1:5 (material/water) ratio, according to the method described by Rayment and Higginson (2002). Total organic carbon (TOC) was determined using the modified Springer-Klee method (Ciavatta et al, 1989). Cation exchange capacity (CEC) was determined according to ISO 234 (2007).…”

Section: Analysis Of Physical and Chemical Propertiesmentioning

confidence: 99%

Speciation of Heavy Metals by Modified BCR Sequential Extraction in Soils Contaminated by Phosphogypsum in Sfax, Tunisia

Wali

Colinet

Ksibi

2015

EREM

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The accumulation of trace metals in soil is a serious environmental problem that creates a hazard when metals are transferred to water or plants. To understand the mobility and bioavailability of trace metals, the concentrations and distributions of trace metals must be established for different physical and chemical phases of the soil. We determined the concentrations of trace metals (Zn, Pb, Cu, Cr, Co, Ni, Mn, and Fe) in soil using the sequential extraction method recommended by Community Bureau of Reference (BCR) and analysed chemical properties, such as the pH, cation exchange capacity, total organic carbon, electrical conductivity, and calcium carbonate. Our results revealed higher concentrations of trace metals in topsoil samples (0-20 cm) than in subsoil samples (20-40 cm and 40-60 cm) for most metals at four sites. Zn in the topsoil was mostly associated with the non-resistant fraction at all sites. Approximately 60% more Pb was bound to the non-residual, exchangeable and reducible fractions at all sites, and soil depths. Cr, Cu, Ni and Fe were mainly in the residual fraction, whereas Mn was largely present in the non-resistant fraction. The global contamination factor of trace metals decreased with soil depth. The mobility and bioavailability were greatest for Zn, followed by Cu and Pb.

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“…TOC was determined by the K 2 Cr 2 O 7 oxidation method described by Ciavatta et al [18], TN using an elemental analyzer (Thermo Fisher Scientific) and mineral N according to the method reported by Violante [19]. Other nutrients and heavy metals were determined by inductively coupled plasma optical emission spectroscopy (ICP-OES, Spectro Ciros CCD ) after digestion of the sample with 65% HNO 3 .…”

Section: Chemical Characterization Of Tannery Land Plastermentioning

confidence: 99%

Soil Application of Tannery Land Plaster: Effects on Nitrogen Mineralization and Soil Biochemical Properties

Giacometti

Cavani

Gioacchini

et al. 2012

Applied and Environmental Soil Science

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Tannery land plaster (TLP) is a byproduct of lime hydrolysis of leather shavings. Its use in agriculture (organic C ≈ 17%, N ≈ 6% dm) could represent an alternative to landfill or incineration, but the high Cr(III) content (≈5% dm) makes it necessary to evaluate the effect on soil biochemical properties. TLP was therefore added at the rates of 220 and 440 kg of N ha −1 to 2 agricultural soils and incubated for 56 days under controlled conditions. Extractable NH 4 + -N and NO 3 − -N, CO 2 -C evolution, microbial biomass-N, protease activity, and extractable Cr were monitored. The organic N was readily mineralized (>50% in the first week) and a significant increase in microbial activity was measured, regardless of soil type and addition rate. Extractable Cr(III) quickly decreased during the incubation. The absence of a negative impact on soil biochemical properties seems to support the use of TLP in agriculture, although further investigations in long-term field experiments are suggested.

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Determination of organic carbon in soils and fertilizers

Cited by 93 publications

References 6 publications

Effects of silver fir (Abies alba Mill.) on the humus forms in Norway spruce (Picea abies (L.) H. Karst.) stands

Effects of silver fir (Abies alba Mill.) on the humus forms in Norway spruce (Picea abies (L.) H. Karst.) stands

Speciation of Heavy Metals by Modified BCR Sequential Extraction in Soils Contaminated by Phosphogypsum in Sfax, Tunisia

Soil Application of Tannery Land Plaster: Effects on Nitrogen Mineralization and Soil Biochemical Properties

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