Refine your search
Availability
-
Authors
- Allison, F.E. (1)
- Dahlem workshop on h... (1)
- Hopkins, D.P. (1)
- Hopkins, Donald P. (1)
- Tate, Robert L. (1)
-
Item types
- Books (6)
-
Series
-
Topics
- Agriculture (1)
- Fertilizers (1)
- Fertilizers, Manures... (1)
- Humus (4)
- Humus-Congresses (1)
- Soil biology (1)
- Soil ecology (1)
- Soil fertility (3)
- Soil mineralogy (1)
- Soil productivity (1)
- Soil science-Researc... (1)
- Soils-Humic acid con... (1)
- Show more
- Show less