Results 191 to 200 of about 4,679,654 (252)

Chlorpyrifos degradation in turkish soil

Journal of Environmental Science and Health, Part B, 1999
Degradation of chlorpyrifos was evaluated in laboratory studies. Surface (0-15 cm) and subsurface (40-60 cm) clay loam soils from a pesticide-untreated field were incubated in biometer flasks for 97 days at 25 degrees C. The treatment was 2 micrograms g-1 [2,6-pyridinyl-14C] chlorpyrifos, with 74 kBq radioactivity per 100 g soil flask.
U, Yücel, M, Ylim, K, Gözek, C S, Helling, Y, Sarýkaya   +4 more
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Dieldrin: Degradation by Soil Microorganisms

Science, 1967
An attempt was made to discover microorganisms that degrade dieldrin, an extremely stable chlorinated hydrocarbon insecticide. Examination of more than 500 isolates from soil that had been heavily contaminated with various insecticides revealed the existence of a few microbes that are very active in degrading this compound to various metabolites.
F, Matsumura, G M, Boush
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Soil Degradation

2008
Soil degradation is defined as physical, chemical and biological deterioration of soil, is likely to be the most im-portant problem for human nutritional demand in future. Increasing world population and reduction in agricultural land are serious thread for future. Therefore, in order to satisfy nutritional demands, it is important to protect soil, the
YILMAZ, Erdem, ALAGÖZ, Zeki
openaire   +1 more source

Simazine: Degradation by Soil Microorganisms

Science, 1963
A soil fungus, Aspergillus fumigatus Fres., is effective in the degradation of the herbicide 2-chloro-4,6-bis(ethylamino)- s -triazine (simazine). The degradation of both ring- and chain-labeled (C 14 ) simazine was observed in an unamended and an amended (sucrose ...
D D, Kaufman, P C, Kearney, T J, Sheets
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Triglyceride degradation in soil

Organic Geochemistry, 1996
To study the fate of fatty wastes left by food industries in the soil, tristearin was chosen as a model molecular marker and its biodegradation followed in different types of soil in a laboratory experiment. Samples of three soils (controls and treatments) were incubated for periods of 1-4 weeks, at 20°C.
Hita, C., Parlanti, E., Jambu, P., Joffre, J., Ambles, A.   +4 more
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Relationships between physical–geographical factors and soil degradation on agricultural land

Environmental Research, 2018
&NA; It is a well‐known fact that soil degradation is dramatically increasing and currently threatens agricultural soils all around the world. The objective of this study was to reveal the possible connection between soil degradation and seven physical ...
M. Bednář, B. Šarapatka
semanticscholar   +1 more source

Fungal Communities in Soils: Soil Organic Matter Degradation

2016
Stable isotope probing (SIP) provides the opportunity to label decomposer microorganisms that build their biomass on a specific substrate. In combination with high-throughput sequencing, SIP allows for the identification of fungal community members involved in a particular decomposition process.
Tomáš, Větrovský, Martina, Štursová, Petr, Baldrian   +2 more
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Soil Resources and Soil Degradation

2012
Including rocky surfaces, deserts, and ice-covered areas, there is 130,575,894 km2 land area in the globe. About 38.5 million km2 (29.45 % of the earth’s ice-free land surface) is too dry for human habitation, and about 20.2 million km2 (15.46 %) of the land occuring in the cold tundra zone is not much suitable for normal agriculture.
openaire   +1 more source

Soil Degradation: Food Security

2014
Growing populations lead to an increasing demand for food. With decreasing per-capita areas of arable land, this leads to additional pressure and stresses on the limited land resources, especially the soils. As a consequence, large parts of the world are affected by soil degradation, and this has a direct effect on food security.
Michael A. Zoebisch, Eddy De Pauw
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Chemical Soil Degradation

2013
Estimates in 1991 suggest that about 240 M ha land is chemically degraded. Nutrient depletion has affected 136 M ha, salinization damaged 77 M ha, and acidification degraded 6 M ha. Another 11 M ha is affected by soil pollution. Agricultural mismanagement (58 %) and deforestation (28 %) are the main causes of chemical degradation of soil.
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