00475nam a2200157Ia 4500008004100000082001600041100002700057245004200084260005900126300000900185650004100194650003400235653002000269653001200289653001600301170901s1974    xx            000 0 und d  a631.8bF34F  aFernandez, V. Hernando 0aFertilizers, Crop Quality and Economy  aNew YorkbElsevier Scientific Publishing Companyc1974  a1415  aAgriculture and related technologies  aTechnology (Applied sciences)  aCrop production  aEconomy  aFertilizers