The physiological balance of nutrient solutions for plants in sand culture
By: by Authur G. McCall ...
Published: 1916
Place of publication: [Baltimore]
Language: eng
Number of pages: 88
Subjects: Nutrition of Plants; Growth (Plants)
Notes: Vita.

Required typewritten copy.

Thesis (Ph. D.)--Johns Hopkins University.

Literature cited: l. 84-87.