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Showing 50 result(s) in Books. Ranked by relevance, with ranking context shown on each result.
R. H. Loughridge | 1914
Humus and humus-nitrogen in California soil columns
Symposium Humus et Planta (10th 1991 Prague, Czechoslovakia) | 1992
Humus, its structure and role in agriculture and environment
R H (Robert Hills) 184 Loughridge | 2021
Humus in California Soils; B242
Charles 1809-1882 Darwin | 2023
Darwin on Humus and the Earthworms
Alexis Anastay Julien | 2018
On the Geological Action of the Humus Acids
J. Hausen | 1888
Der Humus in seiner Bedeutung für den Boden
