. 2022 Nov 7;13:996220. doi: 10.3389/fmicb.2022.996220

TABLE 5.

Effect of graded B levels on soil enzymes in cauliflower-cowpea-okra cropping system (Pooled data 2015–2017).

B-levels (kg ha^–1)	Fluorescein di-acetate (FDA) hydrolysis activity (μg fluorescein g^–1 h^–1)			Phosphomonoesterase (PMEase) activity (μgp-nitrophenol g^–1 h^–1)			Dehydrogenase (DH) activity (μg TPF g^–1 24 h^–1)			Arylsulphatase (AS) activity (μgp-nitrophenol g^–1 h^–1)			Urease activity (UE) (μg NH₄-N g^–1 soil 2 h^–1)
	Vegetative stage
	Cauliflower	Cowpea	Okra	Cauliflower	Cowpea	Okra	Cauliflower	Cowpea	Okra	Cauliflower	Cowpea	Okra	Cauliflower	Cowpea	Okra
B₀	5.11^b	5.21^c	5.02^bc	42.34^d	44.47^c	43.25^c	122.21^cd	135.96^c	117.21^c	8.15^b	8.41^c	8.13^c	29.65^a	24.24^a	21.24^a
B_0.5	5.71^b	5.85^bc	5.78^bc	44.59^c	46.51^b	45.29^bc	131.45^c	146.59^b	126.45^bc	9.42^b	9.03^b	8.84^bc	28.76^ab	22.95^a	19.85^b
B_1.0	6.24^ab	6.54^bc	6.29^b	46.22^b	48.16^ab	46.94^b	140.11^bc	151.81^b	135.11^bc	9.71^ab	9.32^ab	9.22^b	27.91^ab	21.07^ab	18.57^b
B_1.5	6.79^a	6.93^b	6.64^a	47.94^b	49.66^a	48.44^b	146.08^b	159.28^ab	141.08^b	10.02^a	9.51^ab	9.59^b	26.54^b	19.91^bc	18.21^b
B_2.0	7.12^a	7.29^a	6.99^a	49.12^a	50.87^a	49.65^a	152.25^a	166.95^a	146.75^a	10.41^a	9.74^a	9.74^a	24.43^c	19.78^c	17.28^c
Mean	6.19	6.36	6.14	46.04	47.93	46.71	138.42	152.12	133.32	11.14	13.14	14.30	27.46	21.03	18.23

	Reproductive stage in different crops^*
	Cauliflower	Cowpea	Okra	Cauliflower	Cowpea	Okra	Cauliflower	Cowpea	Okra	Cauliflower	Cowpea	Okra	Cauliflower	Cowpea	Okra
	Cis	Fls	Frs	Cis	Fls	Frs	Cis	Fls	Frs	Cis	Fls	Frs	Cis	Fls	Frs

B₀	5.22^c	6.06^c	5.17^c	43.89^c	45.24^c	44.02^c	129.32^d	138.66^c	124.51^c	9.13^c	9.71^c	9.10^bc	31.25^a	22.22^a	27.22^a
B_0.5	5.89^bc	6.69^bc	5.67^bc	45.65^ab	47.71^b	46.49^bc	138.54^c	147.74^bc	134.25^b	10.41^b	10.22^b	9.38^b	29.98^b	20.94^ab	25.54^ab
B_1.0	6.34^b	7.06^ab	6.05^ab	47.52^ab	49.47^b	48.25^b	147.11^bc	156.08^b	142.91^ab	10.74^b	10.44^ab	9.53^ab	28.71^b	21.05^b	24.45^ab
B_1.5	6.79^b	7.36^ab	6.49^ab	49.26^ab	50.87^ab	49.65^b	152.86^bc	164.88^ab	149.38^ab	10.92^b	10.68^ab	9.67^ab	27.20^b	19.97^b	23.39^ab
B_2.0	7.04^a	7.81^a	6.75^a	50.32^a	52.05^a	50.83^a	160.75^a	171.55^a	155.05^a	11.22^a	10.93^a	9.84^a	21.61^c	18.84^c	22.24^c
Mean	6.42	7.14	6.35	47.33	49.07	47.85	145.72	155.78	141.22	11.90	15.26	14.38	37.75	39.00	23.97

	Maturity stage
	Cauliflower	Cowpea	Okra	Cauliflower	Cowpea	Okra	Cauliflower	Cowpea	Okra	Cauliflower	Cowpea	Okra	Cauliflower	Cowpea	Okra

B₀	5.41^c	6.30^c	5.48^c	44.67^c	45.93^c	44.71^c	135.59^c	142.01^c	127.41^c	10.04^c	10.36^c	9.67^c	28.08^a	23.67^a	26.85^a
B_0.5	5.95^b	6.84^c	5.84^bc	46.96^ab	48.4^b	47.18^b	144.15^bc	150.75^bc	136.65^bc	10.31^bc	10.83^bc	10.03^b	27.12^ab	22.05^a	26.74^ab
B_1.0	6.24^ab	7.02^bc	6.16^bc	48.73^ab	50.4^ab	49.18^b	151.31^bc	157.91^b	145.31^b	10.43^b	11.04^bc	10.38^b	25.90^ab	21.95^b	25.01^b
B_1.5	6.41^ab	7.34^b	6.40^b	50.11^a	53.85^a	50.93^ab	157.28^b	161.36^b	151.28^b	10.64^b	11.26^b	10.57^b	24.81^ab	20.54^b	23.45^b
B_2.0	6.70^a	7.58^a	6.68^a	51.18^a	54.10^a	52.41^a	164.95^a	168.05^a	156.95^a	10.89^a	11.41^a	10.79^a	22.32^c	19.26^c	22.98^c
Mean	5.41	6.3	5.48	44.67	45.93	44.71	135.59	142.01	127.41	12.24	15.36	14.67	28.8	33.67	17.85

*Cis, Curd initiation stage in cauliflower, Fls, flowering stage in cowpea, Frs, fruiting stage in okra. The means followed by a different letter are significantly different at p ≤ 0.05 by Duncan’s multiple range test (values are means of 3-replicates).