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Title

EFFECT OF AZOTOBACTER INOCULATION ON NUTRIENT CONCENTRATIONS OF NITROGEN AND PHOSPHORUS IN TOMATO

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Abstract

 EFFORTS FOR INCREASE PRODUCTION PER UNIT AREA HAVE BEEN FOLLOWED BY UNPLEASANT CONSEQUENCES SUCH AS INCREASED NITROGEN POLLUTION AND ENVIRONMENTAL DESTRUCTION. ONE WAY TO INCREASE BIOLOGICAL PRODUCTION IS POTENTIAL USE OF USEFUL SOIL MICRO-ORGANISM SWHICH ARE CAPABLE OF MOLECULAR BIOLOGICAL NITROGEN FIXATION OR PRODUCTION OF PLANT GROWTH REGULATORS. THESE MICRO-ORGANISMS INCLUDE BACTERIA OF GENUS AZOTOBACTER WHICH IMPROVE NUTRITION AND GROWTH CONDITIONS BY THEIR IMPORTANT PROPERTIES SUCH AS ABILITY TO FIX NITROGEN, INCREASE MOBILITY AND ABSORB NUTRIENTS AS WELL AS PRODUCE PLANT GROWTH HORMONES. IN PRESENT STUDY WE STUDIED EFFECT OF AZOTOBACTER CHROOCOCCUM ON UPTAKE OF NUTRIENT NITROGEN AND PHOSPHORUS IN TOMATO. THE EXPERIMENT WAS LAID OUT AS A COMPLETELY RANDOMIZED DESIGN FOR SEVEN TREATMENTS WITH THREE REPLICATIONS. THE RESULTS INDICATEDA POSITIVE SIGNIFICANT EFFECT OF THIS BACTERI ON INCREASED UPTAKE OF THESE NUTRIENTS.

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