000 00305nam a2200109Ia 4500
001 MPKV101057
008 120911s9999 xx 000 0 und d
245 _aAdvances in Agronomy.Vol.52, 1994.
_cSparks, Donald, L.;
260 _aSan Diego.
_bAcademic Press.
_c1994
300 _axii
_b281pp
365 _b2654 /-
999 _c64566
_d64566