The use of feldspathic rocks as fertilizers
By: By Allerton S. Cushman ...
Series: Bulletin / U.S. Dept. of Agriculture. Bureau of Plant Industry : -- 104; Bulletin (United States. Bureau of Plant Industry) -- no. 104.
Publisher: Govt. Print Off.
Published: 1907
Place of publication: Washington
Language: eng
Number of pages: 32
Subjects: Feldspar; Potash
Notes: Includes bibliographical references and index.