A graphic method of interpreting response to fertilizer /
Ibach, D. B. 1900-
A graphic method of interpreting response to fertilizer / by D.B. Ibach. - Washington, D.C. : U.S. Dept. of Agriculture, Agricultural Research Service, 1956. - ii, 27 p. : ill. ; 26 cm. - Agriculture handbook / United States Department of Agriculture ; no. 93 . - Agriculture handbook (United States. Department of Agriculture) ; no. 93. .
"Supersedes U.S. Bur. Agr. Econ., FM 105, Determining profitable use of fertilizers, 1953 / by D. B. Ibach and S. W. Mendum."
Includes bibliographical references.
agr56000137
Fertilizers--Graphic methods.
S639 / .I2
1 / Ag84Ah no.93
A graphic method of interpreting response to fertilizer / by D.B. Ibach. - Washington, D.C. : U.S. Dept. of Agriculture, Agricultural Research Service, 1956. - ii, 27 p. : ill. ; 26 cm. - Agriculture handbook / United States Department of Agriculture ; no. 93 . - Agriculture handbook (United States. Department of Agriculture) ; no. 93. .
"Supersedes U.S. Bur. Agr. Econ., FM 105, Determining profitable use of fertilizers, 1953 / by D. B. Ibach and S. W. Mendum."
Includes bibliographical references.
agr56000137
Fertilizers--Graphic methods.
S639 / .I2
1 / Ag84Ah no.93