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Interference of annual weeds in seedling alfalfa

Creator:: Fischer, Albert J.
Abstract:: The interference of barnyardgrass (Echinochloa crusgalli), pigweed (Amaranthus retroflexus),downy brome (Bromus tectorum),and tumble mustard (Sisymbrium altissimum) with alfalfa was studied. Alfalfa was seeded with each of the four weeds on August 14 and September 15, 1981, and on April 13, 1982. Alfalfa also was seeded on August 27, 1981, with...
Resource Type:: Masters Thesis
Full Text:: approved. Arnol . App by Jean H. Dawson The interference of barnyardgrass (Echinochloa crus- galli

Factors influencing barnyardgrass (Echinochloa crus-galli) control with diclofop

Creator:: West, Lynn Douglas
Abstract:: Diclofop (2- [4 -(2, 4-dichlorophenoxy)phenoxy] propanoic acid), formulated as the methyl ester, selectively kills barnyardgrass [Echinochloa crus -galli (L.) Beauv.] in several crops when applied postemergence. Studies were conducted to determine the effect of soil moisture, barnyardgrass age, and site of exposure on control of barnyardgrass with diclofop. Soil moisture...
Resource Type:: Dissertation
Full Text:: advisers, Dr. Arnold P. Appleby and Dr. J. H. Dawson for their advice and assistance during the course of

Sugarbeet response to mechanical and chemical manipulation of the shoot apical meristem

Creator:: Eberlein, Charlotte Vawter
Resource Type:: Masters Thesis
Full Text:: Arnold P. Appleby / Redacted for privacy J. H. Dawson Sugarbeets respond to excess late-season N with

Selective control of volunteer wheat (Triticum aestivum (L.) em. Thell.) in new seedlings of alfalfa (Medicago sativa L.) with fluazifop-butyl and sethoxydim

Creator:: Ott, Pablo
Abstract:: Volunteer winter wheat (Triticum aestivum 'Daws') severely suppressed growth of fall-planted alfalfa (Medicago sativa (L.) 'Vernal') seedlings. Wheat competition began soon after alfalfa emerged and continued until the first forage harvest the following May. Alfalfa yield at the first cutting was reduced by 1% for each day volunteer wheat was...
Resource Type:: Masters Thesis
Full Text:: approved: Redacted for Privacy Jean H. Dawson( 14 Arnold Pf Xpplebyf Volunteer winter wheat (Triticum

Sorption and phytotoxicity of triazine herbicides in neutral and calcareous soils

Creator:: Colbert, Floyd Oral
Resource Type:: Dissertation
Full Text:: , Department of Farm Crops, Dr. Virgil H. Freed, Department of Agricultural Chemistry, Dr. Frank H. Smith

Factors influencing the effectiveness of activated carbon used to protect newly-seeded grasses from herbicides

Creator:: Burr, Ronald J.
Abstract:: Previous research has shown that activated carbon is effective in inactivating certain herbicides applied as a preemergence treatment. Studies were conducted in the greenhouse to determine the influence of various factors on the ability of activated carbon to inactivate herbicides applied after carbon application. Field studies were conducted to determine...
Resource Type:: Masters Thesis

Factors influencing wild oat control with N-benzoyl-N-(3,4-dichlorophenyl) alanine (SD 30053)

Creator:: Colbert, Donald Robert
Abstract:: Studies were conducted in 1969 and 1970 to evaluate the effectiveness of an experimental herbicide, SD 30053 (alanine, N-benzoyl-N-(3, 4-dichlorophenyl)-, ethyl ester), for wild oat (Avena fatua L.) control in winter cereals. The 1969 field studies showed that postemergence applications of SD 30053 were effective in controlling wild oats. Wild...
Resource Type:: Masters Thesis
Full Text:: the preparation of this manuscript. I am grateful to Dr. Ronald J. Burr, Department of Agronomic

Comparisons of morphology and susceptibility to herbicides of two yellow nutsedge (Cyperus esculentus L.) varieties

Creator:: Costa, Jaime
Resource Type:: Masters Thesis
Full Text:: . Ronald J. Burr for serving on my graduate committee and reviewing this thesis. My thanks to the

The response of tomatoes to atrazine as affected by magnesium and photoperiod

Creator:: Brenchley, Ronald Glenn
Abstract:: Studies were conducted to determine the nature of the interaction between atrazine (2-chloro-4-ethylamino-6-isopropylaminos- triazine) and magnesium on tomatoes. This interaction was studied under two light regimes: continuous light and a 12-hour photoperiod. Tomato plants were grown in sand cultures at three levels of magnesium fertilization. Four weeks after planting, atrazine...
Resource Type:: Dissertation
Full Text:: counsel and suggestions with the gas analyzer phase of this research. To Drs. Harold J. Evans and Norman

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:: thank Dr. H. Ronald Cameron, Dr. Michael D. Glenn, Dr. Donald Claypool, and. Dr. Willis McCuistion for

ScholarsArchive@OSU

Interference of annual weeds in seedling alfalfa

Factors influencing barnyardgrass (Echinochloa crus-galli) control with diclofop

Sugarbeet response to mechanical and chemical manipulation of the shoot apical meristem

Selective control of volunteer wheat (Triticum aestivum (L.) em. Thell.) in new seedlings of alfalfa (Medicago sativa L.) with fluazifop-butyl and sethoxydim

Sorption and phytotoxicity of triazine herbicides in neutral and calcareous soils

Factors influencing the effectiveness of activated carbon used to protect newly-seeded grasses from herbicides

Factors influencing wild oat control with N-benzoyl-N-(3,4-dichlorophenyl) alanine (SD 30053)

Comparisons of morphology and susceptibility to herbicides of two yellow nutsedge (Cyperus esculentus L.) varieties

The response of tomatoes to atrazine as affected by magnesium and photoperiod

Factors influencing metribuzin use in strip-planted wheat

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