TY  - BOOK
ED  - Food and Agriculture Organization.
TI  - Guidelines for participatory diagnosis of constraints and opportunit ies for soil and plant nutrient management
U1  - 631.8 
PY  - 2000///
CY  - Rome
PB  - FAO
KW  - Soil fertility
KW  - Plant nutrients
N1  - Includes bibliographical references
ER  -