000
00257nam a22001097a 4500
003
OSt
100
_a
Kanwar.J.S
245
_a
Plant nutrient needs, supply, efficiency and policy issues : 2000-2025
700
_a
Katyal.J.C
901
_a
RP2021
942
_2
ddc
_c
RP
999
_c
8813
_d
8813