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Subject: Humus
Institution
Collection
Subject
Humus
3
Humic acid
2
Humification
2
Soil chemistry
2
Soil ecology
2
Soil management
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2
Soils
1
Apalachicola River Valley (Fla.)
1
Crops and soils
1
Floodplain ecology
1
Forest ecology
1
Forest litter
1
Forest litter Biodegradation
1
Geochemical prospecting
1
Gold ores
1
Land use Environmental aspects
1
Nitrogen Fixation
1
Organic farming
1
Range management
1
Soil biochemistry
1
Soil conservation
1
Soil dynamics
1
Soil erosion
1
Soil fertility
1
Soil formation
1
Soil science
1
Soils Humic acid content
1
Soils Nitrogen content
1
Soils Quality Study and teaching
1
Sustainable agriculture
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Author
11
ScienceDirect (Online service)
3
Ghabbour, Elham A.,
3
Humic Substances Seminar
3
United States. Natural Resources Conservation Service,
2
Davies, G.,
2
Geological Survey (U.S.)
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2
Soil Quality Institute (U.S.),
1
Allison, Franklin E. 1892-1972
1
Cairns, Duncan J.
1
Coleman, David C., 1938-
1
Curtin, Gary C., 1935-
1
Davies, Goeffrey,
1
Elder, John F., 1942-
1
Geological Survey (U.S.),
1
Grazing Lands Technology Institute (U.S.),
1
Hayes, M. H. B. 1930-
1
International Symposium "Humus et Planta"
1
International Symposium "Humus et Planta" Prague, Czech Republic)
1
Khan, Shahamat U.
1
Kononova, M. M.
1
Kononova, M. M. 1898-1979,
1
Krishnamurthy, S.
1
Kubát, J.
1
Kumada, Kyōichi, 1921-
1
Michrina, Barry P. 1947-
1
National Soil Survey Center (U.S.),
1
Newman, A. C. D., 1929-
1
Nowakowsli, T. Z.,
1
Oades, J. M.
1
Piccolo, Alessandro
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