Index Catalog // ScholarsArchive@OSU

Some physiological and biochemical aspects of haloxyfop herbicidal activity alone or mixed with dicamba

Creator:: Alvarado, Renan A.
Resource Type:: Dissertation
Full Text:: activity of fluazifop-butyl, haloxyfop-methyl and sethoxydim in soil. Weed Science 32: 824-831. 5. Burton

Response of downy brome (Bromus tectorum) and Kentucky bluegrass (Pao pratensis) to primisulfuron

Creator:: Hendrickson, Paul E.
Abstract:: Glasshouse and growth-chamber experiments were conducted to evaluate primisulfuron phytotoxicity and the influence of adjuvants on downy brome and Kentucky bluegrass. GR₅₀ (50% growth reduction) values were 0.97 ± 0.57 and 8.07 ± 1.85 g/ha for downy brome and Kentucky bluegrass, respectively. Primisulfuron was applied to downy brome and Kentucky...
Resource Type:: Masters Thesis
Full Text:: Submitted to Weed Technology A Journal of the Weed Science Society of America, Lawrence Kansas

Microbial degradation of atrazine in soils

Creator:: Skipper, H. D. (Horace D.)
Abstract:: Atrazine is an asymmetrical s-triazine herbicide used pre- and post-emergence for the control of weeds in many crops. Under conditions considered unfavorable for microbial activity, atrazine may persist in soils for extended periods of time. However, the significance of chemical versus microbial degradation is not known. This study was conducted...
Resource Type:: Masters Thesis
Full Text:: significance of mi- crobial degradation of atrazine by pure cultures and the native soil population in non

Interaction of selected herbicides with soil constituents

Creator:: El-Madhun, Yousef Abdel Wahab
Abstract:: The behavior of six herbicides in soil was studied under controlled laboratory conditions. Sorption of bromacil, chiorotoluron and diuron was assessed by the batch equilibration procedure over a broad range of aqueous phase sorbate concentration. Linear equilibrium sorption constants (K[subscript p]) were slightly higher at 4° C than at 25°...
Resource Type:: Dissertation
Full Text:: Soil Science presented on June 6, 1984 Title: Interaction of Selected Herbicides With Soil

Some effects of certain insecticides and herbicides on soil bacteria

Creator:: Johns, Elvy Earl
Resource Type:: Masters Thesis
Full Text:: for the degree of MASTER OP SCIENCE June 1951 AP}OVEDz Redacted for Privacy Professor of

Effect of Endothal and certain other selective herbicides on microbial activity in six different soils

Creator:: Au, Frederick Hung Fo
Abstract:: The effect of Endothal (3, 6-endoxyhexahydrophthalic acid), sodium pentachlorophenate (Na-PCP) and TD-47 (di-N, N-dimethylcocoamine salt of Endothal) on the microbial populations, ammonification, nitrification and respiration in six different soils was investigated. It was found that Endothal at 20 and 200 ppm had no adverse effect on the microbial population, ammonification,...
Resource Type:: Dissertation
Full Text:: 13 Influence of Soil Properties on the Persistence of the Herbicides 15 Endothal (3, 6

Surfactant effects on bromacil and picloram adsorption by Oregon soils

Creator:: Gaynor, John Donald
Abstract:: The physical and chemical properties of soils greatly affect the toxicity of bromacil and picloram. Consequently, a knowledge of the parameters which influence the soil inactivation of these herbicides is necessary to determine proper application rates for good weed control. Enhancement in phytotoxicity with the addition of surfactants or surface...
Resource Type:: Masters Thesis
Full Text:: safely used in pineapple and citrus crops (Weed Society of America, 1967). Formulation Bromacil is

Moisture influences on bromacil distribution in the soil and resultant uptake and phytotoxicity

Creator:: Schreiber, Jonathon Dennis
Resource Type:: Dissertation
Full Text:: range from 375 g of soil treated with 7,100 p.g of 14C bromacil. Extracts were collected at pressure

Influence of weed density on efficacy of two soil-applied herbicides

Creator:: Burrill, L. C.
Abstract:: Several studies were conducted to determine the effect of weed density on herbicide efficacy. Diuron [3-(3, 4- dichlorophenyl) -1, 1- dimethylurea] was tested on various densities of Italian ryegrass (Lolium multiflorum Lam. ) under greenhouse and field conditions. Cycloate (S-ethyl N-ethylthiocyclohexanecarbamate) was tested on green foxtail (Setaria viridis (L. )...
Resource Type:: Masters Thesis
Full Text:: MASTER OF SCIENCE (Name) (Degree) in AGRONOMIC CROP SCIENCE presented on a,,,L.4 /9Z3 (Major) (Date

The decomposition of 2-chloro-4-ethylamino-6-isopropylamino-S-triazine (atrazine) and related s-triazine herbicides by soil microorganisms

Creator:: Duke, William B.
Abstract:: Atrazine, atratone and ametryne are asymmetric s-triazine herbicides used pre- and post-emergence on many crops. Under conditions unfavorable for microbial activity, these compounds may persist in the soil for long periods of time. This study was conducted to determine the influence of the soil microflora upon atrazine, atratone and ametryne...
Resource Type:: Masters Thesis
Full Text:: wlth each of the herbicldes. The samples were lncubated for one and one-half months before use. Soil

ScholarsArchive@OSU

Some physiological and biochemical aspects of haloxyfop herbicidal activity alone or mixed with dicamba

Response of downy brome (Bromus tectorum) and Kentucky bluegrass (Pao pratensis) to primisulfuron

Microbial degradation of atrazine in soils

Interaction of selected herbicides with soil constituents

Some effects of certain insecticides and herbicides on soil bacteria

Effect of Endothal and certain other selective herbicides on microbial activity in six different soils

Surfactant effects on bromacil and picloram adsorption by Oregon soils

Moisture influences on bromacil distribution in the soil and resultant uptake and phytotoxicity

Influence of weed density on efficacy of two soil-applied herbicides

The decomposition of 2-chloro-4-ethylamino-6-isopropylamino-S-triazine (atrazine) and related s-triazine herbicides by soil microorganisms

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