TY  - BOOK
AU  - Ibach,D.B.
AU  - Adams,J.Richard
ED  - United States.
TI  - Crop yield response to fertilizer in the United States
T2  - [United States. Dept. of Agriculture] Statistical bulletin
AV  - HD1751 .A5 no. 431
PY  - 1968///]
CY  - Washington]
PB  - U.S. Dept. of Agriculture, Economic Research Service; [for sale by the Supt. of Docs., U.S. Govt. Print. Off.
KW  - Fertilizers
KW  - United States
KW  - Statistics
KW  - Crop yields
N1  - Cover title; Supersedes U.S. Agricultural Research Service. Farm Economics Research Division. Fertilizer used on crops and pasture in the United States; 1954 estimates, issued as U.S. Dept. of Agriculture, Statistical bulletin, no. 216; Bibliography: p. 11
ER  -