Suggested Topics within your search.
Suggested Topics within your search.
Soils
9
Congresses
9
Soil science
8
Soil formation
5
Agriculture
5
Classification
5
Geology
5
Soil fertility
4
Analysis
4
Nitrogen content
4
Research
4
Soil chemistry
3
Nitrogen fertilizers
3
Petrology
2
Agricultural chemistry
2
Crop yields
2
Environmental aspects
2
Frozen ground
2
Geochemie
2
Geochemistry
2
Mineralogical chemistry
2
Minerals
2
Soil geography
2
Soil management
2
Soil physics
2
Soil productivity
1
Chimie inorganique
1
Clay minerals
1
Composition
1
Crops and climate
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81[Jena] : Urban & Fischer.Center for Research Libraries: v.34 (1975)
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