Supplement to SB 659 : adjusting and forecasting herbage yields in the intermountain big sagebrush region of the steppe province

The material in this supplement is prepared to update and broaden that originally published in 1983 as Oregon State University Agricultural Experiment Station Bulletin 659, Adjusting and Forecasting Herbage Yields in the Intermountain Big Sagebrush Region of the Steppe Province. The supplement consists of five sections. Section 1 adds data from some 78 stations that were not included in the 1983 bulletin. Section 2 brings the original data up to date. Section 3 provides crop year data for the new stations. Section 4 combines into a single, state-by-state list crop year data for 1986 and 1987 for all stations reported in the original bulletin and this supplement. Section 5 is a series of state-by-state representations of the modified Thiessen grid on which this work is based.Published April 1989. 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/catalo

Effect of Soil Contamination on the Mineral Composition of Forage Fertilized with Nitrogen

Mineral analysis of forage from a nitrogen (N) fertilizer, field study produced unexpectedly high iron (Fe) concentrations which were correlated with the N fertilizer level (r²=.92) and the percentage N in the forage (r²=.94). The high Fe values were presumed to be associated with dust on the leaves. The objective of this study was to determine the level of soil contamination on the forage sample and the contribution of mineral in the contaminant to that measured in the sample. Soil contamination of plant tissue samples was calculated from the dilution of soil titanium (Ti) assuming that the uncontaminated tissue contained 0 g Ti/g. Tissue harvested from the 0, 28, 56, or 84 kg N/ha treatments contained 23, 49, 48, and 60 mg soil/ g, respectively. Significant N fertilizer effects would have been accepted for each element tested if soil contamination had been ignored. Correcting for contamination resulted in significant N-fertilizer effects on the concentrations of sodium, potassium, manganese, iron, and zinc but not magnesium or calcium in the forage. Some of these effects may be explained by the acidifying effect of the N fertilizer source

Effect of form and rate of active ingredient, spraying season, solution volume, and type of solvent on mortality of big sagebrush, Artemisia tridentata

Published April 1955. 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/catalo

Crested wheat production : impacts on fertility, row spacing, and stand age

Published November 1976. 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/catalo

Soil ingestion by ungulates grazing a sagebrush-bunchgrass range in Eastern Oregon

Ingested soil by the grazing animal not only contributes to the wear of the animal's teeth, but may also be a source of dietary minerals. Thus, an estimate of soil intake is a necessary factor in the determination of the amount of minerals entering the animal via the soil. Titanium (Ti), a rare earth element, is relatively abundant in soils, but is found only in small quantities (1 part per million) in plants not contaminated with soil (Healy, 1968). Thus, its presence in the feces of grazing animals is a reflection of: (1) eating soil-contaminated forage; (2) ingesting soil directly; (3) drinking soil-contaminated water. Mayland et al. (1975) investigated the Ti method in Idaho and found it useful for estimating soil ingestion by cattle grazing a semiarid range. Recently, Mayland and Sneva (in press) discuss the Ti method's usefulness to range investigations. This paper presents Ti values determined in the soil and in feces of five ungulates grazing a sagebrush-bunchgrass range over a two-year period. From those findings the annual mean soil intake per ungulate was estimated and discussed relative to the variability in the data

Studies of six grasses seeded on sagebrush-bunchgrass range : yield, palatability, carbohydrate accumulation, development morphology

Published September 1963. 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/catalo

Adjusting and forecasting herbage yields in the intermountain big sagebrush region of the steppe province

Published August 1983. 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/catalo

Temperature-precipitation considerations in Eastern Oregon

Published March 1979. 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/catalo

Forecasting range herbage production in eastern Oregon

Published October 1962. 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/catalo

Yield, yield-trend, and response to nitrogen of introduced grasses on the Oregon high desert

Published July 1965. 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/catalo