TY  - BOOK
AU  - Haynes, R J
TI  - Mineral nitrogen in the plant-soil system
U1  - 581.1335 H333M 
PY  - 2013///
CY  - New Delhi
PB  - Elsevier India
N1  - 1968 10/02/2015 TB1078 12/02/2015 Main Budget
ER  -