TY  - JA
AU  - Olsen,R.A.
AU  - Bennett,J.H.
AU  - Clark,R.B.
TI  - The enhancement of soil fertility by plant roots
SN  - 0003-0996
U1  - 82-788542 
PY  - 1981///
KW  - Fertilizers
KW  - AGROVOC
KW  - Plant physiology and biochemistry
KW  - Soil fertility
N1  - ill. 41 ref
T2  - American Scientist
ER  -