Index Catalog // ScholarsArchive@OSU

Determination of the adsorption and movement of 2,3,6-trichlorobenzoic acid in soil as influenced by soil type and water percolation

Creator:: Del Pozo, Jenaro
Resource Type:: Masters Thesis

The influence of soil moisture and method of application on the movement of the herbicide EPTC in soil

Creator:: Omid, Ahmad
Resource Type:: Masters Thesis

Influence of the removal of weed competition by herbicides in establishing subterranean clover, Trifolium subterraneum L.

Creator:: López, Hernán
Resource Type:: Masters Thesis

The influence on winter wheat yields of competitive weedy species

Creator:: Albeke, William Edgar
Abstract:: A study was conducted to compare the competitive ability with weeds of the short-strawed Gaines variety wheat and taller growing varieties under different fertility levels at three experimental locations. The experiments were designed so that the effects of variety, nitrogen fertilization, and weed competition could be evaluated. The interactions between...
Resource Type:: Masters Thesis

The influence of chemical and biochemical properties on the herbicidal efficiency of 3-cyclohexyl-5, 6-trimethylene uracil and 2-bromo-6'T-butyl-o-acetotoluidide

Creator:: Mackenzie, John William
Abstract:: Application of herbicides to the soil has become an important factor in the production of row crops. Economic production of sugar beet (Beta vulgaris), an important row crop, requires efficient methods of weed control. Two experimental herbicides, 3-cyclohexyl-5,6-trimethylene uracil (DP634) and 2-bromo-6't-butyl-o-acetotoluidide (CP32179), had shown promise in sugar beet screening...
Resource Type:: Masters Thesis

Factors influencing the herbicidal activity of dimethyl 2,3,5,6-tetrachloroterephthalate

Creator:: McKinley, James Raleigh
Abstract:: Studies were conducted to determine the site of DCPA toxicity on annual ryegrass. This was done by means of a technique which used pyrex tubing and a vapor barrier to separate exposure of coleoptile and roots of emerging grass seedlings to various concentrations of DCPA. Coleoptiles that emerged through treated...
Resource Type:: Masters Thesis

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

Relationship of nitrogen level to medusahead, Taeniatherum asperum (Sim.), competition with wheatgrass and silica content

Creator:: Brown, Dean Allen
Abstract:: Studies were conducted to determine the competitive ability of medusahead, Taeniatherum asperum (Sim.), for nitrogen when grown in association with perennial range grass species. The method used to determine this competitive ability was to compare the dry weight, percent nitrogen, and total nitrogen of medusahead and perennial wheatgrass species growing...
Resource Type:: Masters Thesis

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

The influence of herbicides, phosphorus fertilization, and mechanical and chemical seedbed preparation on the establishment of alfalfa (Medicago sativa L.) and birdsfoot trefoil (Lotus conrniculatus L.)

Creator:: Valdes Lamar, Ramon
Abstract:: Initial establishment of legume forage crops is of prime importance in determining future forage and seed production. The objective of this study was to determine the influence of herbicides, phosphorus fertilization, and seedbed preparation on the establishment of alfalfa and birdsfoot trefoil. Experiments were designed to study the influence of...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Determination of the adsorption and movement of 2,3,6-trichlorobenzoic acid in soil as influenced by soil type and water percolation

The influence of soil moisture and method of application on the movement of the herbicide EPTC in soil

Influence of the removal of weed competition by herbicides in establishing subterranean clover, Trifolium subterraneum L.

The influence on winter wheat yields of competitive weedy species

The influence of chemical and biochemical properties on the herbicidal efficiency of 3-cyclohexyl-5, 6-trimethylene uracil and 2-bromo-6'T-butyl-o-acetotoluidide

Factors influencing the herbicidal activity of dimethyl 2,3,5,6-tetrachloroterephthalate

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

Relationship of nitrogen level to medusahead, Taeniatherum asperum (Sim.), competition with wheatgrass and silica content

Microbial degradation of atrazine in soils

The influence of herbicides, phosphorus fertilization, and mechanical and chemical seedbed preparation on the establishment of alfalfa (Medicago sativa L.) and birdsfoot trefoil (Lotus conrniculatus L.)

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