Study on the use of ftilizers and manures in agricultural production.
- Delhi : MP , 1967
- ii, 188p. : ill. ; 22 cm.
- PEO. Pubs. No. 56 .
Includes bibliographical references and index.
Fertilizer
Agriculture
IND PC 30
Includes bibliographical references and index.
Fertilizer
Agriculture
IND PC 30