TY  - BOOK
TI  - Advances in agronomy. V 29
U1  - 631/635 
PY  - 1977///
CY  - New York
PB  - Academic
KW  - Agronomy
KW  - Grass
KW  - Nitrogen fixation
KW  - Soil organic phosphorus
KW  - Somatic cell genetics
KW  - Trickle drip irrigation
ER  -