Green manuring : principles and practice of natural soil improvement /
Green manuring : principles and practice of natural soil improvement /
Editor William F. Brinton, contributions from Otto Schmid & Reudi Klay.
- 3rd rev. ed.
- Mt. Vernon, Me. : Woods End Agricultural Institute, 1989.
- v, 51 p.
0960355456
93016279
Green manuring.
0960355456
93016279
Green manuring.