00461nam a2200145Ia 4500008004100000082002200041100002200063245006700085260000900152300001000161650001600171942000700187952010400194999001700298140113s9999    xx            000 0 und d  a631.8:633(213) L0  a" De Geus, J. G."  aFertilizer guide for food grains in the tropics and subtropics  b1970  a119p.  aFertilizers  cBK  00104070aKYMbKYMd2014-01-13l0o631.8:633(213) L0pKBK913r2014-01-13 00:00:00w2014-01-13yBK  c64392d64392