Chemicals, humus and the soil; a a simple presentation of contemporary knowledge and opinions about fertilizers, manures and soil fertility
Hopkins, Donald P.
Chemicals, humus and the soil; a a simple presentation of contemporary knowledge and opinions about fertilizers, manures and soil fertility - Brooklyn : Chemical Pub., 1948 - 358 p.
16456
Fertilizantes y abonos.
Humus.
631.8 / H66 1948
Chemicals, humus and the soil; a a simple presentation of contemporary knowledge and opinions about fertilizers, manures and soil fertility - Brooklyn : Chemical Pub., 1948 - 358 p.
16456
Fertilizantes y abonos.
Humus.
631.8 / H66 1948