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A DIRECT MICROSCOPIC RATIO-METHOD USING POLYSTYRENE BEADS TO DETERMINE MICROBIAL NUMBERS IN SOILPETERSON HL; FREDERICK LR.1979; SOIL BIOL. BIOCHEM.; GBR; DA. 1979; VOL. 11; NO 1; PP. 77-83; BIBL. 27 REF.Article

FIELD EVALUATION OF SELECTED RHIBOZIUM IN AN IMPROVED LEGUME INOCULANTKREMER RJ; PETERSON HL.1983; AGRON. J.; USA; DA. 1983; VOL. 75; NO 1; PP. 139-143; BIBL. 30 REF.Article

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EFFECT OF SUSPENDING AGENT AND TEMPERATURE ON SURVIVAL OF RHIZOBIUM IN FERTILIZERKREMER RJ; POLO J; PETERSON HL et al.1982; SOIL SCI. SOC. AM. J.; USA; DA. 1982; VOL. 46; NO 3; PP. 539-542; BIBL. 24 REF.Article

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