Effects of organic solvents on denitrification in soil

Yeomans, Jane C.; Bremner, J. M.

doi:10.1007/bf00257829

Cited by 10 publications

(4 citation statements)

References 10 publications

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“…They did not offer any explanation for this observation. Yeomans and Bremner (1986) reported that ethanol was used more effectively than glucose or mannitol by denitrifiers. They warned that solvents such as acetone, methanol, or ethanol are difficult to remove from soil and may solubilize a fraction of the soil C, making it available to denitrifiers.…”

Section: Carbon Sourcesmentioning

confidence: 98%

Carbon Sources for Bacterial Denitrification

Beauchamp

Trevors

Paul

1989

Advances in Soil Science

244

132

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Section: Carbon Sourcesmentioning

confidence: 98%

Carbon Sources for Bacterial Denitrification

Beauchamp

Trevors

Paul

1989

Advances in Soil Science

244

132

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“…The use of lower solvent levels was impractical, since a minimum volume of test solution was required to evenly distribute the insecticide to the soil samples. Little is known about the effects of acetone toward nitrification (Debnath and Bhattacharya, 1982), but a recent study into the effects of organic solvents on denitrification in soil showed that they can have a significant effect on this process and can elicit erroneous conclusions regarding the toxicity of the solute (Yeomans and Bremner, 1989). Solvents are capable of interacting with pesticides in bioassays, and can cause synergistic and/or antagonistic responses (Stratton et al, 1982).…”

Section: Resultsmentioning

confidence: 99%

Effects of the insecticide endosulfan on nitrification in low pH agricultural soils

Stratton

1990

Environ. Toxicol. Water Qual.

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Two methods of measuring nitrification in soil bioassays were compared for their sensitivity in estimating toxic effects of endosulfan, a cyclodiene insecticide. Both technical grade endosulfan (95% pure) and endosulfan formulated as a commercial preparation (Thiodan 4EC) were tested in a sandy loam (pH 5.7), a silt loam (pH 5.0), and a clay loam (pH 4.9) soil. Nitrification was assayed using both soil perfusion and batch incubation techniques. There was a significant difference in the nitrification pattern evidenced by the three soils.In the sandy loam soil up to 90% of the added ammonium ion was converted into nitrate within 30 days, while the silt loam required 40 days to achieve similar nitrate levels.

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“…The electrical conductivity (EC) and pH were measured using a Crison conductivimeter and pH meter, respectively, in a 1/5 (w/v) aqueous extract. Soil OM was determined by oxidation with K 2 CrO 7 in an acid medium and titration of the excess dichromate with (NH 4 ) 2 Fe(SO 4 ) 2 (Yeomans & Bremner, 1989). Total nitrogen (TN) was measured using Kjeldhal's method as modified by Bremner and Mulvaney (1982).…”

Section: Methodsmentioning

confidence: 99%

Effects of stand composition and soil properties on water repellency and hydraulic conductivity in Mediterranean forests

et al. 2021

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This study evaluates soil hydraulic conductivity (SHC) and water repellency (SWR) in three mixed forest stands in relation to site plant and soil characteristics. The studied forest stands were (i) Pinus nigra Arn. ssp salzmannii and Quercus ilex; (ii) P. nigra Arn. ssp salzmannii and Juniperus Thurifera; (iii) P. nigra Arn. ssp salzmannii, Q. ilex and Juniperus Thurifera. A 100‐ to 120‐year‐old unmanaged P. nigra Arn. ssp salzmannii stand was also chosen as control. The hydrological variables, physico‐chemical properties and surface characteristics of soils were surveyed. Soil water infiltration was higher in Pinus + Juniper mixed forest and Pinus + Quercus + Juniper mixed forests compared to unmanaged Pinus stands. None of the studied forest stands shows a high level of repellency. Only a slight repellency (in unmanaged stands dominated by pines) or moderate repellency (in soils with Pinus and Juniper) were evident, while soils with Pinus and Quercus were not repellent. Differences in SHC among the forest species were driven primarily by the soil texture and associated structure and secondarily by soil organic matter and associated SWR. The latter was mainly due to organic matter content of the soils, but others of the soil physico‐chemical properties and covers analysed were found as influencing parameters to discriminate SWR among mono‐specific and mixed forest stands. While SHC at the studied forest stands could be predicted using organic matter as well as sand and clay contents of the soil, SWR is the result of several hydrological and physico‐chemical parameters.

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Effects of organic solvents on denitrification in soil

Cited by 10 publications

References 10 publications

Carbon Sources for Bacterial Denitrification

Carbon Sources for Bacterial Denitrification

Effects of the insecticide endosulfan on nitrification in low pH agricultural soils

Effects of stand composition and soil properties on water repellency and hydraulic conductivity in Mediterranean forests

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