Research Article

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

Table 1

Interactions evaluated in the experimental design.

BacteriumConcentration (CFU/mL)Fertilization (% N/P)Code of the interactions

GIBI0298.8 × 1070/0GIBI-C1-0/0
0/100GIBI-C1-0/100
100/0GIBI-C1-100/0
100/100GIBI-C1-100/100
18 × 1070/0GIBI-C2-0/0
0/100GIBI-C2-0/100
100/0GIBI-C2-100/0
100/100GIBI-C2-100/100

ATCC 490378.8 × 1070/0ATCC-C1-0/0
0/100ATCC-C1-0/100
100/0ATCC-C1-100/0
100/100ATCC-C1-100/100
18 × 1070/0ATCC-C2-0/0
0/100ATCC-C2-0/100
100/0ATCC-C2-100/0
100/100ATCC-C2-100/100

Control (conventional treatment)0100/100Control-100/100

Remarks: The first values in the fertilization column correspond to the percentage of nitrogen addition (0-no application and 100-application of 100% fertilization with urea); the second values correspond to the percentage of phosphorus addition (0-no application and 100-application of 100% fertilization with phosphoric acid); C1-8.8 × 107 CFU/mL, C2 18 × 107 CFU/mL; and ATCC, reference strain G. diazotrophicus ATCC 49037; GIBI, native isolate G. diazotrophicus GIBI029.