Yazar
l j heidmann
19 cilt bulundu.
L. J. Heidmann · USDA Forest Service, Rocky Mountain Forest and Range Experiment Station
Sayfa sayısı yok · 1981
Seeds / Ponderosa pine / Pine
L. J. Heidmann · Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
12 sayfa · 1976
Ponderosa pine / Frost heaving / Seedlings / Wounds and injuries
L. J. Heidmann · Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
Sayfa sayısı yok · 1975
Kategori yok
L. J. Heidmann · U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station
10 sayfa · 1976
Soil moisture / Seeds / Trees / Frost heaving / Measurement
L. J. Heidmann · Forest Service, U.S. Dept. of Agriculture, Rocky Mountain Forest and Range Experiment Station
Sayfa sayısı yok · 1975
Kategori yok
L. J. Heidmann · Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
11 sayfa · 1968
Control / Diseases and pests / Ponderosa pine / Dwarf mistletoes / Forests and forestry
L. J. Heidmann · Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
Sayfa sayısı yok · 1963
Growth / Ponderosa pine / Pruning
L. J. Heidmann · Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
Sayfa sayısı yok · 1963
Soil moisture / Planting / Ponderosa pine / Reforestation / Mulching
L. J. Heidmann · USDA Forest Service, Rocky Mountain Forest and Range Experiment Station
Sayfa sayısı yok · 1997
Ponderosa pine / Reforestation
L. J Heidmann · Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station
10 sayfa · 1977
Ponderosa pine / Reforestation
L. J Heidmann · USDA Forest Service, Rocky Mountain Forest and Range Experiment Station
Sayfa sayısı yok · 1985
Fertilization of plants / Forests and forestry / Ponderosa pine / Measurement
L. J. Heidmann · U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station
Sayfa sayısı yok · 1992
Drought tolerance / Ponderosa pine / Plant-water relationships
L. J. Heidmann · Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
Sayfa sayısı yok · 1967
Control / Grasses / Herbicides / Ponderosa pine
L. J. Heidmann · Rocky Mountain Forest and Range Experiment Station, Forest Service, U.S. Dept. of Agriculture
Sayfa sayısı yok · 1970
Control / Grasses / Soil moisture conservation / Ponderosa pine
L. J Heidmann · USDA Forest Service, Rocky Mountain Forest and Range Experiment Station
Sayfa sayısı yok · 1990
Soil moisture / Soil moisture potential / Loam soils / Measurement
L. J Heidmann · USDA Forest Service, Rocky Mountain Forest and Range Experiment Station
Sayfa sayısı yok · 1983
Seed industry and trade / Ponderosa pine
L. J Heidmann · U.S. Dept. of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station
12 sayfa · 1984
Herbicides / Forest regeneration
L. J Heidmann · USDA Forest Service, Rocky Mountain Forest and Range Experiment Station
Sayfa sayısı yok · 1983
Diseases and pests / Dwarf mistletoes / Ponderosa pine