Yazar
Roman Viktorovich Kovalev
30 cilt bulundu.
Roman Viktorovich Kovalev · Izd-vo "Nauka," Sibirskoe otd-nie
163 sayfa · 1986
Humus / Soil formation / Soils / Composition
Roman Viktorovich Kovalev · Nauka, Sib. otd-nie
Sayfa sayısı yok · 1974
Natural history / Biotic communities
Roman Viktorovich Kovalev · Nauka, Sibirskoe otd-nie
135 sayfa · 1974
Soils / Congresses / Frozen ground
Roman Viktorovich Kovalev · Izdatelʹstvo "Nauka" Sibirskoe otdelenie
223 sayfa · 1982
Soils / Congresses / Classification / Soil formation / Soil physics
Roman Viktorovich Kovalev · Redakt͡sionno-izdatelʹskiĭ otdel Sibirskogo otd-nii͡a AN SSSR
216 sayfa · 1964
Soil formation
Roman Viktorovich Kovalev · "Nauka", Sibirskoe otd-nie
119 sayfa · 1976
Soils / Soil formation / Soil chemistry
Roman Viktorovich Kovalev · "Nauka", Sibirskoe otd-nie
158 sayfa · 1975
Soil erosion / Soil conservation / Soils
Roman Viktorovich Kovalev · "Nauka," Sibirskoe otd-nie
142 sayfa · 1977
Soils / Soil fertility / Soil erosion / Soil conservation
Roman Viktorovich Kovalev · "Nauka," Sib. otd-nie
119 sayfa · 1971
Plants / Soils / Effect of trace elements on / Trace element content
Roman Viktorovich Kovalev · Izd-vo "Nauka," Sibirskoe otd-nie
119 sayfa · 1981
Soil formation / Podzol / Forest soils
Roman Viktorovich Kovalev · "Nauka," Sib. otd-nie
238 sayfa · 1972
Soils / Soil fertility / Soil microbiology
Roman Viktorovich Kovalev · Akademii͡a︡ nauk SSSR, Sibirskoe otdelenie, Institut t͡s︡itologii i genetiki, Institut pochvovedenii͡a︡ i agrokhimii
334 sayfa · 1988
Conservation of natural resources / Ecology
Roman Viktorovich Kovalev · "Nauka," Sibirskoe otd-nie
206 sayfa · 1989
Soils / Soil formation / Soil productivity / Soil protection
Roman Viktorovich Kovalev · "Nauka," Sibirskoe otd-nie
138 sayfa · 1989
Water in agriculture / Reclamation of land
Roman Viktorovich Kovalev · Izd-vo "Nauka," Sibirskoe otd-nie
229 sayfa · 1978
Soils / Baĭkalo-Amurskai︠a︡ magistralʹ / Congresses / Railroads / Baĭkalo-Amurskai͡a magistralʹ