Polypeptidyl derivatives of bovine pancreatic ribonuclease
(RNase) containing two or three tyrosine chains
with an average of two to three residues per chain have
been prepared. The effects of various perturbants such as
neutral salts, ethanol, urea and guanidine hydrochloride
on the thermal transition of the derivatives have been
studied....
An adequate soil fertility program will pay big dividends in the production of field corn, providing the recommended variety is seeded, weeds and other pests are controlled, and an adequate moisture level is maintained. Corn effectively uses the nitrogen built up by alfalfa or clover and the nutrients supplied by...
The objectives of this study were to evaluate and compare the
availability of native and applied P in Central Oregon pumice soils
with that in Willamette valley soils and calcareous soils from Eastern
Oregon. The experimental work to meet these objectives included
laboratory and greenhouse studies.
The removal of P...
A series of nine experiments designed to evaluate the effects
of N, P, and K fertilizers on the production of wheat in western
Oregon were seeded in the fall and carried through the 1967 growing
season. The experimental sites were selected to represent different
soils that are used for production...
During the summer of 1967 a fertilizer survey was conducted
to determine the nutrient status of peppermint fields, the nutrient
concentration of plant tissue and the oil content of peppermint in
Oregon.
Plant and soil samples and the field's fertilizer history
were collected from cooperators in
Oregon's peppermint growing
areas...
Incubation experiments with an acid poorly drained soil have
shown that the application of neutral soluble salts influenced the level
of extractable Mn. The application of a salt which lowered the soil
pH either increased the extractable Mn or retarded the oxidation
and/or fixation of extractable Mn. This effect was...