Revised July 1985. 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
Finite, uncertain, and increasingly expensive
energy resources require a better understanding of energy
utilization in all sectors of the national economy including agriculture. A significant portion of energy used
in agriculture is required for the manufacturing, installation, transporting, and operation of irrigation systems.
Quantification of the amounts of energy used...
Foliar applications of urea-ammonium nitrate (UAN) around anthesis increased seed protein content by about 40% in 1983 and 1984 in 'Scio' barley (Hordeum vulgare L.). In exploring the mode and the mechanism of this increase, agronomic and physiological studies were conducted. The late N applications did not affect yield or...
The dynamics of stands in the mid-elevation old-growth
Douglas-fir (Pseudotsuga menziesii) forests of the central western
Oregon Cascade Range were investigated using stand structure
analysis. Trees with different growth rates were commonly present
in the same stand, which resulted often in a weak correlation
between tree diameter and age. Thus,...
Clay mineral genesis was studied in soils representative of several
different geomorphic surfaces in western Oregon, ranging in age from
Pliocene-early Pleistocene to late Pleistocene. Soil solution studies,
clay mineralogy, and soil raicromorphology were employed to provide
evidence of clay mineral synthesis and interpret soil genesis.
Soils at each study...