Table 1.

Treatment combinations applied in plots T1-T10. SSP = single superphosphate, RP = rock phosphate, PSB = phosphate-solubilizing bacteria (5 kg ha⁻¹).

Treatment	Factor A:	Factor B	Factor C
	P source	P level (kg ha−1)	PSB
T1	Control	0	No PSB
T2	SSP	0	Only PSB
T3	SSP	45	Without PSB
T4	SSP	90	Without PSB
T5	SSP	45	With PSB
T6	SSP	90	With PSB
T7	RP	45	Without PSB
T8	RP	90	Without PSB
T9	RP	45	With PSB
T10	RP	90	With PSB