TY  - BOOK
ED  - Expert Consultation on Fertilizer
ED  - United Nations.
TI  - Fertilizer use under multiple cropping systems
SN  - 9251014078
U1  - 631.81 
PY  - 1983///
CY  - Rome
PB  - FAO
KW  - Soil amendments
KW  - Fertilizers
KW  - Agricultural chemicals
KW  - Soil fertility
KW  - Soil conditioners
N1  - Includes bibliography: p. 179-201
ER  -