Index Catalog // ScholarsArchive@OSU

The differential response of Ligustrum ovalifolium and Pyracantha spp. to simazine

Creator:: Rauch, Fredrick Donald
Resource Type:: Masters Thesis
Full Text:: ) reported no injury to L. ovalifolium from applications of simazine at 10 pounds per acre on a clay loam

Effects of three herbicides on yields of five cultivars of winter wheat (Triticum aestivum L. em Thell)

Creator:: Yahyaoui, Amor
Abstract:: With the development of new selective herbicides and the frequent change in commercial wheat cultivars, information is needed as to the possible interaction between cultivars and herbicides. The responses of five genotypically diverse wheat cultivars (Bezostaya, Daws, Maris Hobbit, Stephens and Yamhill) to diuron [3-(3,4-dichloropheny1)-1,1- dimethylurea], diclofop methyl 2-[4-(2,4-dichlorophenoxy)phenoxy] propanoate...
Resource Type:: Masters Thesis
Full Text:: plastic pots (one plant per pot) and the soil used was a clay loam mixed with peat moss. The temperature

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:: silty clay loam soil was treated hrith atra- zine, atratone or arnetryne and inoculated wlth a soil

Annual bluegrass (Poa annua L.) control with ethofumesate during turfgrass establishment

Creator:: Wieneche, David L.
Abstract:: Temperate climates are particularly conducive to growth of annual bluegrass which readily invades and dominates most cool-season turfgrasses. Ethofumesate (2-ethoxy-2,3-dihydro-3,3-dimethyl-5-benzofuranyl methanesulfonate) is one herbicide available which will selectively control annual bluegrass. The primary objectives of this research were to determine optimum application rates and timing of ethofumesate for control of...
Resource Type:: Masters Thesis
Full Text:: L.) CONTROL WITH ETHOFUMESATE DURING TURFGRASS ESTABLISHMENT by David L. Wienecke A Thesis

Effect of a pre-irrigation period on the activity of ethofumesate applied to dry soil

Creator:: McAuliffe, David
Abstract:: Applications of ethofumesate in Oregon have been observed from previous research and from commercial use to be less effective when applied to dry soils, even if subsequent precipitation occurred within a few days. Two field studies were established in the summer of 1979 using sweet corn (Zea mays L. 'Jubilee')...
Resource Type:: Masters Thesis
Full Text:: structure. Clays Clay Miner. 16:393-398. 18. Ostrowski, J. and A. Reisler. 1976. On the effect of place

Factors influencing metribuzin use in strip-planted wheat

Creator:: Zeghida, Ali
Abstract:: Equipment for strip-till planting is under development in wheat-fallow rotations in the Columbia Basin of Oregon. This involves the absence of tillage during the fallow season. At planting time, the strip-till planter creates a narrow band into which the wheat seed is placed. The area between the rows is undisturbed...
Resource Type:: Masters Thesis
Full Text:: between clay and organic matter for sites available for herbicide adsorption. This competition caused a

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:: ) and adsorption of two uracils, several triazines, ureas and carbamate herbicides on a clay (C = 2

Factors influencing the herbicidal activity and persistence of isomers of 1, 1-dimethyl-diisopropyl-indanyl ethyl ketone in soil

Creator:: Donaldson, Dean Robert
Abstract:: The purpose of this study was to evaluate the activity of Sindone (isomers of 1, 1-dimethyl-diisopropyl-indanyl ethyl ketone) under field conditions and to gain information regarding the rate of detoxification of Sindone in soil. A series of trials were established in sugar beet fields in California, Oregon, and Washington. Sindone...
Resource Type:: Masters Thesis
Full Text:: the rate of detoxi- fication of Sindone in soil. A series of trials were established in sugar beet

The effect of soil mixture and soil cover on residual activity of herbicides measured by seedling emergence of Poa annua, L

Creator:: Schwabauer, Richard Allen
Resource Type:: Masters Thesis
Full Text:: "00I-0"1- mic,rons in diameter" A cubic centi- meter of colloid clay having the size of 0"1 mtcrons

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
Full Text:: percent control of annual grass using 30 pounds active DCPA per acre in Chilian, Chile, in a clay-loam

ScholarsArchive@OSU

The differential response of Ligustrum ovalifolium and Pyracantha spp. to simazine

Effects of three herbicides on yields of five cultivars of winter wheat (Triticum aestivum L. em Thell)

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

Annual bluegrass (Poa annua L.) control with ethofumesate during turfgrass establishment

Effect of a pre-irrigation period on the activity of ethofumesate applied to dry soil

Factors influencing metribuzin use in strip-planted wheat

Surfactant effects on bromacil and picloram adsorption by Oregon soils

Factors influencing the herbicidal activity and persistence of isomers of 1, 1-dimethyl-diisopropyl-indanyl ethyl ketone in soil

The effect of soil mixture and soil cover on residual activity of herbicides measured by seedling emergence of Poa annua, L

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

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