. 2022 Oct 6;13:952092. doi: 10.3389/fmicb.2022.952092

TABLE 1.

Physicochemical properties of rhizosphere soil of M. integrifolia treatment groups (CK = 1-year monoculture orchard, Y5 = 5-year monoculture orchard, and Y20 = 20-year monoculture orchard).

Basic physical and chemical properties of soil	Index (1 year) (CK)	Index (5 years) (Y5)	Index (20 years) (Y20)
Organic matter (g/kg)	10.30 ± 0.009^c	29.17 ± 0.060^a	17.46 ± 0.042^b
Available nitrogen (alkaline hydrolyzed nitrogen) (mg/kg)	21.40 ± 0.003^c	109.23 ± 0.760^a	87.02 ± 0.850^b
Available phosphorus (mg/kg)	3.60 ± 0.011^c	36.64 ± 0.170^a	22.16 ± 0.370^b
Rapidly available potassium (mg/kg)	88.30 ± 0.007^c	194.54 ± 0.330^a	155.05 ± 0.190^b
pH	5.40 ± 0.012^a	5.31 ± 0.220^b	4.94 ± 0.032^c

Values in the same row with different superscripts differ significantly.