Results 221 to 230 of about 49,330 (265)

Soil Persistence of Napropamide

Weed Science, 1979
The persistence of napropamide [2-(α-naphthoxy)-N,N-diethylpropionamide] applied at 2.24- and 4.48-kg/ha was studied for 2 yr at two locations in the field. Wheat (Triticum aestivumL. ‘Arthur 71′) was severely injured when sown in the fall following a spring application of napropamide.
R. R. Romanowski, A. Borowy
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Persistence of Hookworm Larvae in Soil

The American Journal of Tropical Medicine and Hygiene, 1953
Summary Eighteen enclosed units of soil were inoculated with equal numbers of hookworm eggs and dampened daily until larvae reached the infective stage. Half were then dampened daily and half left to dry until their turns came to be sampled. Sampling, which began on the 5th day in the wet series and on the 9th day in the dry, was progressive and ...
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Persistence of fensulfothion in soil

Journal of Environmental Science and Health, Part B, 1977
Abstract Persistence of Fensulfothion (O,O‐diethyl‐O‐(p‐methyl sulfinyl) phenyl phosphorothioate) in soil under laboratory conditions was followed using 3 day old larvae of the silkworm, Bombyx mori L. and also by cholinesterase inhibition method. Low concentrations i.e., 50–175 ppm persisted for about 50–60 days whereas high concentrations (250–500 ...
S. Sheela, V.N. Vasantharajan
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Soil Persistence of Dinitramine

Weed Science, 1980
The effects of soil temperature, moisture, and herbicide concentration on the rate of degradation of dinitramine (N4,N4-diethyl-α,α,α-trifluoro-3,5-dinitrotoluene-2,4-diamine) were measured in clay loam and sandy loam in the laboratory. In sandy loam, the rate of degradation increased with increasing temperature.
J. A. Poku, R. L. Zimdahl
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Persistence of D.D.T. and Benzene Hexachloride in Soils

Annals of Applied Biology, 1948
Acid and alkaline soils, both alone and mixed with 2 % of D.D.T. or 2 % of benzene hexa‐chloride (mixed isomers, containing 10% of the γ‐isomer) have been exposed outdoors or subjected to controlled leaching in the laboratory. Residual insecticide has been estimated at intervals by a method involving dehydrohalogenation, and determinations have also ...
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Persistence of triazine herbicides in soils

1970
Although phytotoxic residues of the triazine herbicides are objectionable when, in some soils and under some environmental conditions, sensitive plants are injured the season after application, residual activity is essential for weed control and soil sterilization.
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Metribuzin Persistence in Soil

Weed Science, 1977
The persistence of metribuzin [4-amino-6-tert-butyl-3-(methylthio)-as-triazine-5(4H)-one] in several soils from the lower alluvial floodplain of the Mississippi River was studied in the greenhouse and laboratory using bioassay and gas chromatographic methods of residue detection.
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Terbuthylazine persistence in an organic amended soil

Journal of Environmental Science and Health, Part B, 2008
The aim of this work was to study the effect of the application of a solid waste from olive oil production (alperujo) on the movement and persistence of the herbicide terbuthylazine (N2-tert-butyl-6-chloro-N4-ethyl-1,3,5-triazine-2,4-diamine). An experimental olive grove was divided in two plots: (i) Plot without organic amendment (blank) and (ii) Plot
Cabrera Mesa, Alegría, Cox, Lucía, Velarde Muñoz, Pilar, Cornejo, J.   +3 more
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EDB: persistence in soil

Science, 1987
J J, Pignatello, B L, Sawhney, C R, Frink   +2 more
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Persistence of azinphosmethyl in soil

Bulletin of Environmental Contamination and Toxicology, 1975
D C, Staiff, S W, Comer, J F, Armstrong, H R, Wolfe   +3 more
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