Table 3 Chemical properties of the soils under the different amendments at the end of the leaf lettuce growing season

6.06 ± 0.02^c

0.26 ± 0.00^bc

532.2 ± 19.4^f

0.06 ± 0.01^c

0.00 ± 0.00^c

0.10 ± 0.01^d

0.15 ± 0.01^b

8.40 ± 0.20^c

5.21 ± 0.13^c

6.53 ± 0.16^a

0.37 ± 0.07^b

876.2 ± 24.1^c

0.34 ± 0.01^c

0.04 ± 0.01^c

0.59 ± 0.02^d

0.18 ± 0.04^ab

8.94 ± 0.63^abc

5.79 ± 0.41^b

6.35 ± 0.08^b

1.12 ± 0.21^a

603.6 ± 14.2^d

0.66 ± 0.38^c

0.09 ± 0.06^b

1.13 ± 0.66^d

0.24 ± 0.02^a

8.68 ± 0.35^bc

5.77 ± 0.21^b

6.29 ± 0.06^b

0.22 ± 0.02^bc

580.3 ± 13.3^e

0.61 ± 0.10^c

0.04 ± 0.01^c

1.06 ± 0.17^d

0.14 ± 0.01^b

9.42 ± 0.38^a

6.21 ± 0.27^a

6.38 ± 0.11^ab

0.26 ± 0.03^bc

452.0 ± 11.4^g

1.40 ± 0.07^b

0.10 ± 0.01^b

2.41 ± 0.12^c

0.18 ± 0.04^ab

9.01 ± 0.07^ab

6.14 ± 0.09^ab

6.30 ± 0.07^b

0.21 ± 0.00^c

890.5 ± 15.2^b

1.67 ± 0.23^b

0.12 ± 0.02^b

2.88 ± 0.40^c

0.20 ± 0.09^ab

9.44 ± 0.07^a

6.13 ± 0.11^ab

6.41 ± 0.07^ab

0.24 ± 0.01^bc

907.3 ± 17.4^a

2.96 ± 0.77^b

0.20 ± 0.06^a

5.10 ± 1.33^b

0.18 ± 0.03^ab

8.94 ± 0.19^abc

6.14 ± 0.12^ab

6.32 ± 0.09^b

0.19 ± 0.01^c

573.4 ± 18.4^e

1.82 ± 0.32^b

0.10 ± 0.03^b

3.13 ± 0.56^c

0.17 ± 0.02^ab

9.15 ± 0.21^ab

6.11 ± 0.09^ab

6.42 ± 0.02^ab

0.25 ± 0.01^bc

566.1 ± 9.8^e

3.68 ± 0.36^a

0.20 ± 0.03^a

6.35 ± 0.63^a

0.18 ± 0.01^ab

8.96 ± 0.25^abc

5.74 ± 0.23^b