00304nam a2200097Ia 4500008004100000082003900041100000900080245008600089260002300175300000800198140113s9999    xx            000 0 und d  a581.112:631.41:621.039(047.3)   K6  aIAEA  aLimiting steps in Ion uptake by Plants from Soil(Technical Reports Series No. 65)  a1966bIAEAcVienna  a154