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Effect of two methylcarbamates on the toxiciity of isopropyl m-chlorocarbanilate (chlorpropham) to safflower (Carthamus tinctorius L.) and common buckwheat (Fagopyrum esculentum Moench.)

Creator:: Kirkland, Kenneth
Abstract:: Addition of the methylcarbamate compounds p-chlorophenyl N-methylcarbamate (PPG-124) and 1-naphthyl N-methylcarbamate (carbaryl) to various herbicides has resulted in reduced rates of degradation. Carbaryl affects the degradation of certain herbicides in both plants and soils while PPG-124 has only been demonstrated to affect degradation in soils. Both these materials are effective...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF KENNETH KIRKLAND for the

An economic analysis of alternative herbicide practices

Creator:: Coulston, Lane Edward
Abstract:: There is a critical lack of economic information in the area of chemical weed control. This paper is intended to stimulate study in this area. The objective is to develop a method of economic analysis of alternative herbicide practices. The data used were taken from a Druchamp winter wheat trial...
Resource Type:: Masters Thesis
Full Text:: conducted by several British economists. Hillebrandt, in abstracts from the "Journal of Agriculture

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:: Effects of three herbicides on yields of five cultivars of

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:: AN ABSTRACT OF THE THESIS OF LARRY CLYDE BURRILL for the

The effect of growth regulating compounds on winter wheat varieties

Creator:: Miller, Jonas William
Resource Type:: Masters Thesis
Full Text:: . Differential response of barler var1et1es to 2,4-dichloropbenoxyacetic acid (2,4-D). Agronomy journal 44:182

The influence of magnesium on the toxicity of atrazine

Creator:: Brenchley, Ronald Glenn
Abstract:: Atrazine is an asymmetrical s-triazine herbicide used pre- and post emergence for weed control in many crops. Triazine herbicides have been used in the Pacific-Northwest for weed control in orchard crops. Under certain conditions where trees were grown in nutrient deficient areas, it was noted that toxic symptoms due to...
Resource Type:: Masters Thesis
Full Text:: The Influence of Magensium on the Toxicity of Atrazine

Top-Down Effects of Wildlife and Bottom-Up Drivers of Soils and Productivity in Intensively Managed Forest Plantations in the Northern Oregon Coast Range

Creator:: Frey, David W.
Abstract:: In intensively managed forest plantations in the northern Oregon Coast Range, herbicides are often applied during site preparation and early stand regeneration to reduce competition for resources for planted conifer seedlings. In addition to reducing competition for crop trees, herbicide applications may affect soil processes including decomposition and nutrient cycling,...
Resource Type:: Masters Thesis
Full Text:: Committee Representative and for offering her knowledge about forestry extension. One of the best

Foliage applications of terbacil to peppermint (Mentha piperita) and several weed species

Creator:: Radosevich, Steven R.
Abstract:: Several studies were conducted to determine the feasibility of using terbacil (3-tert-butyl-5-chloro-6-methyluracil) postemergence to weeds and peppermint (Mentha piperita L.). Three nonionic surfactants, four nonphytotoxic oils, and a liquid fertilizer were each combined with 0.5 lb ai/A terbacil in 35 gallons of water per acre. Weed species tested include: redroot...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF STEVEN ROBERT RADOSEVICH for

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
Full Text:: The influence of soil moisture and method of application

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:: Microbial Degradation of Atrazine in Soils AN ABSTRACT OF

ScholarsArchive@OSU

Effect of two methylcarbamates on the toxiciity of isopropyl m-chlorocarbanilate (chlorpropham) to safflower (Carthamus tinctorius L.) and common buckwheat (Fagopyrum esculentum Moench.)

An economic analysis of alternative herbicide practices

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

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

The effect of growth regulating compounds on winter wheat varieties

The influence of magnesium on the toxicity of atrazine

Top-Down Effects of Wildlife and Bottom-Up Drivers of Soils and Productivity in Intensively Managed Forest Plantations in the Northern Oregon Coast Range

Foliage applications of terbacil to peppermint (Mentha piperita) and several weed species

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

Microbial degradation of atrazine in soils

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