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Filtering by: Subject Volcanic ash, tuff, etc

Pozzolanic properties of Oregon volcanic ash

Creator:

Brandenburg, N. Robert (Norman Robert), 1921-

Resource Type:

Masters Thesis
A phosphorus nutrition study of apples on a volcanic ash soil

Creator:

Maul, Jerry Lee

Abstract:

This study was undertaken in a Red Delicious apple orchard in Oregon's Hood River Valley to determine if low leaf P concentrations were contributing to such observed, orchard disorders as poor shoot growth, shoot dieback and. small fruit size at harvest. Subsurface applications of lime and superphosphate had no effect...

Resource Type:

Masters Thesis