Published March 1941. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Weed management in table beets has improved with the recent registration of Dual Magnum. Hairy nightshade control continues to be a challenge, however. Nortron (ethofumesate) herbicide is now labeled for use and will help with nightshade control, but there is very little experience in the PNW on the best use...
The response of sweet corn Zea mays L. var. rugosa (cultivar
'Jubilee') to row spacing, nitrogen and population density at two
planting dates was studied in a field experiment at the OSU
Vegetable Research Farm in 1984. Variables included two row
spacings, 75 cm and 90 cm, three nitrogen rates,...
Research suggests that a key factor in student persistence and success is the relationships students form with faculty (Chickering & Gamson, 1991; Kuh et al., 2005; Tinto, 1987). While it appears to be intuitive that small classes would promote these instructor/student relationships, research on class size provides conflicting results, with...
Field plots of cv. Russet Burbank potatoes from a
single seedlot were established at four sites over two
seasons (1985-86) in two locations in Oregon to determine
the role of water-borne inoculum of Erwinia carotovora in
plant infection. One site at each location was irrigated
from a surface-water source and...
The effects of erect leaf canopies on enhancing grain yield in wheat is not
understood. The main objective of this study was to understand the effect of leaf
angle on grain yield by comparing randomly derived-lines from crosses of erect
and droopy leaf spring wheats. Nine traits associated with canopy...
Experiments in Corvallis, OR and Pasco, WA evaluated the potential of bicyclopyrone, tolpyralate, halosulfuron and EPTC for weed control in carrots. Bicyclopyrone and tolpyralate significantly reduced plant stand, injured carrots, and reduced yield at all three rates. Only bicyclopyrone at 0.875 oz/A and tolpyralate at 1 oz/A provided yield within...
My objectives were to investigate the correlation of height and diameter growth in young Douglas-fir (Pseudotsuga menziesii) plantations with stand density, and to determine the effects of stand density on the canopy boundary layer conductance (g[subscript]ac) and microclimate characteristics of young Douglas-fir plantations. I measured annual height (h) and diameter...
Four years of daily time exposure images from an embayed beach were examined to
study the spacing, persistence, and location preferences of rips in a natural rip channel
system. A total of 5271 rip channels was observed on 782 days. Occurrence statistics
showed no evidence of the preferred location pattern...