00540nam a2200169Ia 4500008004100000082002500041100001700066245005500083260002000138300001200158490002700170600001600197650002800213942000700241952010500248999001700353140224s9999    xx            000 0 und d  a631.45.001.5(047) L0  aHauser, G.F.  aSoil fertility investigations on farmer' s fields.  aRomebFAOc1970  avi,78p.  aFAO Soils Bulletin, 11  aG.F. Hauser  aSoil fertility research  cBK  00104070aKSDbKSDd2014-02-24l0o631.45.001.5(047) L0p3478r2014-02-24 00:00:00w2014-02-24yBK  c95908d95908