Potassium-bearing minerals as a source of potassium for plant growth
By: by Ernest E. De Turk.
Published: 1919
Place of publication: [Baltimore]
Language: eng
Number of pages: 301
Subjects: Potassium.; Fertilizers.
Notes: "References": p. 299-301.
Thesis (PH. D.)--University of Illinois, 1919.
Vita.
"Reprinted from Soil science, vol. VIII, no. 4, October, 1919."