00333nam a2200097Ia 4500008004100000082001600041245005000057260002300107490008800130650001700218220204s9999    xx            000 0 und d  a631.43bSOI 0aSoil physical conditions and crop production.  aLondonbHMSOc1975  aUnited Kingdom, Ministry of Agriculture, fisheries and food, technical bulletin; 29  aSoil science