000
00291nam a2200097Ia 4500
008
230108s9999 xx 000 0 und d
245
0
_a
Nitrate Animilation in Relatin to Nitrogeneous Fertiliger Utiligention and Grain Protein Production
365
_b
0.00
650
_a
Agronomy
942
_c
BK
999
_c
244875
_d
244875