TY  - BOOK
TI  - Advances in agronomy. V 31
U1  - 631/635 
PY  - 1979///
CY  - New York
PB  - Academic
KW  - Agronomy
KW  - Boron nutrition
KW  - Red clover breeding
KW  - Root exudation
KW  - Soil microflora
KW  - Soil nutrients
ER  -