Essential elements and soil amendments for plants
Subtitle: sources and use for agriculture
By: by R.C. Severson and Hansford T. Shacklette.
Contributors: Shacklette, Hansford T.
Series: U.S. Geological Survey circular ;; 1017
Publisher: U.S. G.P.O.; Free on application to Books and Open-File Reports Section, U.S. Geoglogical Survey
Published: 1988
Place of publication: [Washington, D.C.]; Denver, CO
Language: eng
Number of pages: 48
Subjects: Crops and soils.; Crops -- Nutrition.; Soil chemistry.; Geochemistry.; Fertilizers.; Soil amendments.
Notes: Bibliography: p. 41-42.
"Geologic and incidental sources of elements essential for plant growth, and amendments used to improve physical properties of soils."