Table 1 Five years’ pooled grain and stover / straw (Mg ha⁻¹) (± S.D.) yields of maize-wheat rotation under different ICM modules. Means followed by a similar lowercase letters within a column are not significantly different at p < 0.05 according to Tukey’s HSD test.

4.1^b ± 0.33

7.2^b ± 0.52

4.4^a ± 0.16

6.7^a ± 0.20

4.1^b ± 0.11

7.1^b ± 0.40

4.3^a ± 0.23

6.7^a ± 0.39

4.4^ab ± 0.27

7.8^ab ± 0.21

4.3^a ± 0.20

6.7^a ± 0.39

4.2^ab ± 0.11

7.9^ab ± 0.26

4.3^a ± 0.30

6.6^a ± 0.50

4.8^ab ± 0.35

8.1^ab ± 0.45

4.8^a ± 0.19

7.3^a ± 0.09

4.6^ab ± 0.22

7.9^ab ± 0.43

4.8^a ± 0.35

7.2^a ± 0.57

5.2^a ± 0.15

8.7^a ± 0.39

4.9^a ± 0.14

7.3^a ± 0.08

5.1^a ± 0.19

8.6^a ± 0.16

4.8^a ± 0.11

7.7^a ± 0.04