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Cilt sonuçları

Northwest conifers

Northwest conifers

Dale N. Bever · Binford & Mort

102 sayfa · 1981

Conifers / Identification / Pinaceae

Tree planting1948-1949 aerial seeding experiments / by Dale N. BeverDale N. Bever

1948-1949 aerial seeding experiments / by Dale N. Bever

Dale N. Bever · Oregon State Board of Forestry

22 sayfa · 1953

Afforestation / Forests and forestry / Research / Tree planting

TreesEvaluation of factors affecting natural reproduction of forest trees in central western OregonDale N. Bever

Evaluation of factors affecting natural reproduction of forest trees in central western Oregon

Dale N. Bever · Oregon State Board of Forestry

49 sayfa · 1954

Conifers / Reforestation / Reproduction / Trees

SowingA summary of notes from ten experimental direct seeding plots established in the Cochran area from 1944 to 1947Dale N. Bever

A summary of notes from ten experimental direct seeding plots established in the Cochran area from 1944 to 1947

Dale N. Bever · Oregon State Board of Forestry

23 sayfa · 1952

Control / Equipment and supplies / Reforestation / Rodents / Sowing

TreesThe relationship of stocking percent to number of trees per acre on artificially seeded areasDale N. Bever

The relationship of stocking percent to number of trees per acre on artificially seeded areas

Dale N. Bever · Oregon State Board of Forestry

Sayfa sayısı yok · 1952

Douglas fir / Forests and forestry / Growth / Reforestation / Trees

PruningA working plan for the study of natural pruning in second growth Douglas fir stands of the Pacific CoastDale N. Bever

A working plan for the study of natural pruning in second growth Douglas fir stands of the Pacific Coast

Dale N. Bever · Yayınevi bilinmiyor

29 sayfa · 1942

Douglas fir / Pruning

MeasurementA study of a stocking survey system and the relationship of stocking percent as determined by this system to number of trees per acreDale N. Bever

A study of a stocking survey system and the relationship of stocking percent as determined by this system to number of trees per acre

Dale N. Bever · Oregon State Board of Forestry

40 sayfa · 1949

Forest management / Forests and forestry / Measurement

Forest surveysSurveying forest lands for stockingDale N. Bever

Surveying forest lands for stocking

Dale N. Bever · Forest Lands Research, Oregon Forest Research Center

Sayfa sayısı yok · 1961

Douglas fir / Forest management / Forest surveys

Rat baits and repellentsWheat treated with thallium sulphate for use as rodent baitDale N. Bever

Wheat treated with thallium sulphate for use as rodent bait

Dale N. Bever · Oregon State Board of Forestry

Sayfa sayısı yok

Rat baits and repellents

MeasurementRevised "number of trees per acre" curvesDale N. Bever

Revised "number of trees per acre" curves

Dale N. Bever · Oregon State Board of Forestry

Sayfa sayısı yok · 1955

Forests and forestry / Measurement

ReforestationEvaluation of factors affecting natural reproduction establishment of forest trees in central western OregonDale N. Bever

Evaluation of factors affecting natural reproduction establishment of forest trees in central western Oregon

Dale N. Bever · Yayınevi bilinmiyor

66 sayfa · 1954

Forests and forestry / Reforestation

CiltManual of Oregon Trees and Shrubs Robert F. Keniston and Dale N. Bever Wrren R. Randall

Manual of Oregon Trees and Shrubs

Robert F. Keniston and Dale N. Bever Wrren R. Randall · Yayınevi bilinmiyor

320 sayfa · 1974

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