Statistics of crop responses to fertilizers․
Statistics of crop responses to fertilizers․
- Rome ; London : F.A.O. ։ H.M.S.O., 1966.
- viii, 112 p. : illus. (forms), tables, diagrs. ; 24 cm.
- Food and agriculture organization of the United Nations .
Bibliography: p. [66]
Fertilizers--Mathematical models.
Fertilizers--Economic aspects.
Crop yields
Bibliography: p. [66]
Fertilizers--Mathematical models.
Fertilizers--Economic aspects.
Crop yields