Worthen, Edmund L.

Farm soils : their fertilization and management / Edmund L. Worthen and Samuel R. Aldrich. - 5th ed. - New York : Wiley, c 1956. - vii, 439 p. : ill. ; 22 cm. - Wiley farm series. .

Includes index.

310 310


Fertilizers.

631.4 / W899f