Fertilizers and their use
Subtitle: a pocket guide for extension officers (of the F.F.H.C. Fertilizer Programme).
Contributors: Food and Agriculture Organization.
Edition: 2nd ed., revised.
Series: F. F. H. C. basic studies
Publisher: F.A.O; H.M.S.O
Published: 1970
Place of publication: Rome; London
Language: eng
Number of pages: 57
Subjects: Fertilizers and manures -- Handbooks, manuals, etc.
Notes: Previous ed. (B66-17756)1965.

bibl. p53-54.