00286nam a2200097Ia 4500008004100000082001900041245006400060260002600124490001900150650001900169220204s9999    xx            000 0 und d  a631.8(06)bIND 0aIndian society of soil science: Symposium on fertilizer use  aNew DelhibIARIc1970  aBulletin; no 8  aFertilizer use