TY  - JA
AU  - Guinard,A.
TI  - Economic optimization of fertilizer applications:  a method for field staff based on response curves and surfaces
SN  - No (Revis
U1  - 90-061441|84-011335 
PY  - 1982///
KW  - Analysis
KW  - Cultivation
KW  - AGROVOC
KW  - Fertilizing
KW  - Methods
KW  - Production economics
N1  - 9 ref
T2  - Tropical Agriculture
ER  -