Diagnostic techniques for soils and crops, their value and use in estimating the fertility status of soils and nutritional requirements of crops /
Bear, Firman E. 1884-1967.
Diagnostic techniques for soils and crops, their value and use in estimating the fertility status of soils and nutritional requirements of crops / Firman E. Bear and others. - Washington, DC : American Potash Instute 1948., xxiii, 308 p. - ill. ; 26 cm.
Includes bib.
Open access.
Soils--Analysis.
Soil fertility.
Soils--Testing.
Soils--Fertilizer.
Diagnostic techniques for soils and crops, their value and use in estimating the fertility status of soils and nutritional requirements of crops / Firman E. Bear and others. - Washington, DC : American Potash Instute 1948., xxiii, 308 p. - ill. ; 26 cm.
Includes bib.
Open access.
Soils--Analysis.
Soil fertility.
Soils--Testing.
Soils--Fertilizer.