Economic analysis of rhizobia and azospirilla co-inoculation in common beans

Bulletin of the National Research Centre

Table 1 Effect of nitrogen fertilization, single inoculation with R. tropici, and co-inoculation of R. tropici and A. brasilense via foliar spraying on grain yield of common bean. Average data of five field experiments

Treatments¹	Grain yield² (kg ha⁻¹)		Product equivalence (bags 60 kg ha⁻¹)
AC	3355.69	a	55.93	a
NfT	3338.15	a	55.64	a
Rt	3364.44	a	56.07	a
Rt + Ab1l	3360.84	a	56.01	a
Rt + Ab2l	3130.24	b	52.17	b
Rt + Ab3l	3438.53	a	57.31	a
Rt + Ab4l	3300.89	a	55.01	a
RP	3345.98	a	55.77	a
Average	3329.34		55.49

Santo Antônio de Goiás-GO—winter/2018; Formosa-GO—waters/2018–19; Cristalina-GO—winter/2019; Santo Antônio de Goiás-GO—winter /2019; Santo Antônio de Goiás-GO—waters/2019–20
¹AC—Absolute control (without inoculation and fertilization), NfT—nitrogen fertilization (80 kg N ha⁻¹ of N, being 20 kg N ha⁻¹ at sowing and 60 kg N ha⁻¹ at the V4 stage), Rt—two doses of R. tropici in the seed, Rt + Ab1l—two doses of R. tropici in the seed + one dose of A. brasilense applied in V2–V3, Rt + Ab2l—two doses of R. tropici in the seed + two doses of A. brasilense applied in V2–V3, Rt + Ab3l—two doses of R. tropici in the seed + three doses of A. brasilense applied in V2–V3, Rt + Ab4l—two doses of R. tropici in the seed + four doses of A. brasilense applied in V2–V3, and RP-registered product (two doses of R. tropici in the seed + three doses of A. brasilense applied in V2–V3
²Average values of grain yield as reported by Messias et al. (2023). Means followed by the same letter within the same column do not differ by the Scott–Knott test (p ≤ 0.05)