. 2024 May 1;15:1387223. doi: 10.3389/fmicb.2024.1387223

Table 1.

Effects of γ-PGA treatment on soil properties under drought conditions.

	CK	T1	T2	T3	T4
Volumetric weight (g/cm³)	1.55 ± 0.02^a	1.54 ± 0.01^a	1.52 ± 0.02^ab	1.54 ± 0.03^b	1.49 ± 0.02^b
pH	6.98 ± 0.06^a	7.09 ± 0.02^a	7.07 ± 0.09^a	7.19 ± 0.32^a	7.03 ± 0.12^a
Conductivity (us/cm)	152.03 ± 8.64^b	162.73 ± 44.89^b	160.67 ± 6.56^b	358.67 ± 14.01^a	179.73 ± 18.06^b
Organic matter (g/kg)	1.43 ± 0.13^b	1.53 ± 0.09^b	1.51 ± 0.08^b	1.56 ± 0.16^b	2.24 ± 0.16^a
Ureasemg/(g*d)	6.26 ± 0.17^b	6.65 ± 0.78^ab	6.81 ± 0.66^ab	7.44 ± 0.56^a	7.24 ± 0.20^a
S-SCmg/(g*d)	13.37 ± 0.60^b	14.10 ± 1.50^b	14.73 ± 0.25^ab	15.19 ± 2.84^ab	17.16 ± 1.22^a
S-AKP (U/g)	3821.95 ± 871.94^c	7739.72 ± 462.10^bc	9837.00 ± 4298.29^b	14766.15 ± 2870.96^a	4950.44 ± 1678.81^c

Data represent mean ± standard deviation (SD). LSD test was used to assess the differences. Different lowercase letters denote significant differences between the treatments (p < 0.05).