Skip to main content

Table 1 Difference in soil physicochemical property (mean ± SE) between different continuous cropping years

From: Long-term watermelon continuous cropping leads to drastic shifts in soil bacterial and fungal community composition across gravel mulch fields

Variables

CK

1a

6a

11a

16a

21a

SOM (g/kg)

2.79 ± 0.31a

4.75 ± 0.18b

5.58 ± 0.31c

3.31 ± 0.18a

2.69 ± 0.18a

1.24 ± 0.31d

STN (g/kg)

0.48 ± 0.01a

0.46 ± 0.01a

0.4 ± 0.01b

0.36 ± 0.01c

0.33 ± 0.01d

0.3 ± 0.01e

STP (g/kg)

0.81 ± 0.01a

0.75 ± 0.03a

0.56 ± 0.05b

0.48 ± 0.06bc

0.4 ± 0.04 cd

0.31 ± 0.02d

SAN (mg/kg)

24.28 ± 0.82ab

25.69 ± 0.41b

22.62 ± 0.71a

20.27 ± 0.4c

19.8 ± 0.71 cd

17.91 ± 1.08d

SAP (mg/kg)

9.88 ± 0.62a

10.6 ± 1.07a

7.63 ± 0.41b

6.55 ± 0.54b

4.65 ± 0.9c

3.34 ± 0.21c

SAK (mg/kg)

235.67 ± 3.06a

203.53 ± 11.03b

179.05 ± 9.55bc

154.56 ± 4.04 cd

133.14 ± 7.01d

78.04 ± 014.03e

SSC (g/kg)

1.39 ± 0.05a

0.68 ± 0.03b

0.32 ± 0.01c

0.36 ± 0.03c

0.82 ± 0.02d

0.93 ± 0.02e

pH

8.21 ± 0.02a

7.98 ± 0.02b

8.44 ± 0.1c

8.51 ± 0.03 cd

8.6 ± 0.04d

8.74 ± 0.04e

SM (%)

5.22 ± 0.26a

8.28 ± 0.21b

9.7 ± 0.25c

10.56 ± 0.46d

11.34 ± 0.33d

11.26 ± 0.21d

  1. Different lowercase letters indicate a significant difference between two treatments (P < 0.05). SOM soil organic matter, STN soil total nitrogen, STP soil total phosphorus, SAN soil available nitrogen, SAP soil available phosphorus, SAK soil available potassium, SSC soil water-soluble salinity content, SM soil moisture content