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john a sprackling
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Eastern white pine in eastern Nebraska
John A. Sprackling · Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station
Sayfa sayısı yok · 1976
White pine / Provenance trials
Jack pine provenance study in eastern Nebraska
John A. Sprackling · Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
Sayfa sayısı yok · 1975
Jack pine / Provenance trials
Red pine provenance study in eastern Nebraska
John A. Sprackling · Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
Sayfa sayısı yok · 1975
Red pine / Provenance trials
Early field survival of bare-root, container-grown, and potted ponderosa pine seedlings in south-central Nebraska
John A. Sprackling · Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station
Sayfa sayısı yok · 1977
Ponderosa pine