Effect of the Application of Gluconacetobacter diazotrophicus and Its Interaction with Nitrogen and Phosphorus Fertilization on Carrot Yield in the Field

Carrot production is expensive since approximately 51% of the total costs are allocated to nutrition crop. Bacterial inoculants a promising alternative for crop fertilization. This research aimed evaluate effect Gluconacetobacter diazotrophicus on performance carrot cultivar “Royal Chantenay” and its interaction with nitrogen phosphorus An experimental design sub-subdivided plots was applied, where largest plot consisted reference strain (ATCC 49037) native Colombian isolate bacterium (GIBI029); two concentrations were applied in subplots (8.8 × 107 18 CFU/mL), levels sorted within each one them. The best positive observed application G. ATCC49037 GIBI029 at concentration CFU/mL without or which yields 37,417 30,606 kg/ha obtained, respectively, exceeding national average Colombia. In contrast, conventional treatment had yield 27,909 kg/ha. Additionally, higher quality evidenced product weight values 126.48 g (ATCC49037) 104.98 (GIBI029), compared (93.19 g). shown exhibit growth-promoting properties not only crops such as sugarcane but also economically important vegetable crops. results obtained may contribute development novel microbial inoculant vegetables under agroecological conditions tropical areas.