Current Tree Improvement Research in Iowa
Species adaptation studies have been conducted in southeastern, northeastern and western Iowa for several decades. Each area presents different problems because of a wide variation in soil series and types. The Fayette series, a loess-derived, medial gray-brown podzolic found in northeastern Iowa, is a fertile soil on which tree growth is good. However, the shrub and weed competition resulting from the relatively high fertility makes tree establishment exceedingly difficult.
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Author(s): Gordon E. Gatherum
Publication: Tree Improvement and Genetics - Central States Forest Tree Improvement Conference - 1959