Fertilizers -- Research

Evaluation of TVA's national fertilizer introduction program.

Tennessee Valley Authority

Nitrogen release from granules of sulfur-coated urea

by Wesley Michael Jarrell.

Fifty years of field experiments: at the Woburn experimental station

by Sir E. John Russell ... and Dr. J. A. Voelcker ... With a statistical report by W. G. Cochran.

Methodological procedures in the economic analysis of fertilizer use data

edited by E. L. Baum, Earl O. Heady [and] John Blackmore.

Research contributes to more efficient use of fertilizers: a report of progress of the TVA Soils and Fertilizer Research Branch.

Tennessee Valley Authority. Division of Agricultural Relations.

The economics of fertilizer application: conference proceedings.

Western Agricultural Economics Research Council. Farm Management Research Committee.

Progress through cooperative research on fertilizer evaluations: a report of TVA Soils and Fertilizer Research Branch for the period July 1957 through June 1960.

Tennessee Valley Authority. Division of Agricultural Relations.

Relation of pure chemical fertilizers to minor element requirements of certain field soils under intensive cropping

F. L. Wellborn, M. M. Phillippe, and S. S. Obenshain.

Methodological procedures in the economic analysis of fertilizer use data.

Edited by E.L. Baum, Earl O. Heady [and] John Blackmore.

Co-operative research on input/output relationships in use of fertilizers in crop production: an outline of concepts and methods for joint technical/economic studies

by Olle Johansson [and others]; editor Lárus Jónsson.