Irrigation and fertilization of winter cereals in the Karoo
Walter, M.M., Havenga, C.M.
Irrigation and fertilization of winter cereals in the Karoo - Pretoria 1953 - 23 p. - No. 326; Union of South Afric .
Irrigation and fertilization of winter cereals in the Karoo - Pretoria 1953 - 23 p. - No. 326; Union of South Afric .