00274nam a2200109Ia 4500008004100000082001600041100001900057245004400076260001600120300001000136650001800146140113s9999    xx            000 0 und d  a631.434  L4  a" Loveday, J."  aMethods for analysis of irrigated soils  b"CAB, 1974"  a208p.  aSoil analysis