title: Studies in actinomycetes in Egyptian soils. I. The distribution of actinomycetes.
mesh_terms: D000192:Actinomycetales / Q000254:growth & development / Q000302:isolation & purification*; D001431:Bacteriological Techniques; D002119:Calcium Carbonate / Q000032:analysis; D002452:Cell Count; D004534:Egypt; D009584:Nitrogen / Q000032:analysis; D012825:Silicon / Q000032:analysis; D012987:Soil / Q000032:analysis; D012988:Soil Microbiology
chemical_list: D012987:Soil; D002119:Calcium Carbonate; D009584:Nitrogen; D012825:Silicon