000
00313nam a2200121Ia 4500
001
MPKV054635
008
120911s9999 xx 000 0 und d
082
_a
630
245
_a
Journal of Agricultural Research Vol 59
_c
;
246
_a
Journal of Agricultural Research Vol 59
260
_c
1939
650
_a
Agronomy
999
_c
52632
_d
52632