Table 6.

Fluorescein diacetate (μg fluorescein g^-1 dry soil h^-1) and acid phosphatase (μg p-nitrophenol g^-1 dry soil h^-1) activities of soils sampled under uninoculated and inoculated 13-year-old S. senegal trees during dry and rainy season of the 2 years.

Treatments	First year				Second year
	Dry season April		Rainy season August		Dry season April		Rainy season August
	FDA	Acid	FDA	Acid	FDA	Acid	FDA	Acid
		phosphatase		phosphatase		phosphatase		phosphatase
Uninoculated trees	∗0.91 ± 0.5a	162.48 ± 38.0a	0.49 ± 0.1a	178.60 ± 18.8a	1.27 ± 0.2a	328.58 ± 30.6a	0.91 ± 0.11a	369.14 ± 24.2a
Inoculated trees	∗0.86 ± 0.3a	176.01 ± 39.3a	0.84 ± 0.2b	288.49 ± 7.1b	1.38 ± 0.1a	399.70 ± 66.5a	1.27 ± 0.16b	457.7 ± 35.8b

Values within a column sharing same letter comparing rhizobial inoculation treatment are not significantly different at P < 0.05 (Student–Newman–Keuls test). Each value represents the mean of 12 repetitions (six in each block).

^∗These values were obtained before inoculation.