National soil fertility project
J. D. Colwell.
Adelaide : CSIRO Division of Soils in collaboration with state departments of agriculture and the fertilizer industry, 1977-
v. <1, 2> : ilustraciones ; 25 cm.
La biblioteca posee: v. 1.
Contenido
- v. 1. Objectives and procedures.
- v. 2. Soil fertility relationships.