Table 1 Soil properties and maize yields at each experimental site

INI

8.06 ± 0.09^a

3.18 ± 0.18^f

48.51 ± 2.69^f

1.70 ± 0.25^f

5.39 ± 1.04^h

–

CK1

7.97 ± 0.11 ^ab

4.36 ± 1.15^f

151.22 ± 7.13^de

19.43 ± 1.57^e

35.39 ± 0.93^g

1793.50 ± 92.41^f

M1

8.01 ± 0.02^ab

7.85 ± 0.35^e

162.25 ± 3.98^cd

28.44 ± 1.03^cd

50.74 ± 1.39^f

2793.50 ± 103.32^e

O1

8.02 ± 0.02^ab

12.40 ± 1.35^d

173.15 ± 3.15^bc

25.89 ± 0.55^d

71.56 ± 6.65^e

3566.50 ± 157.62^d

MO1

8.08 ± 0.02^a

11.38 ± 1.50^d

181.44 ± 2.60^b

31.44 ± 1.97^c

57.81 ± 6.51^f

3652.50 ± 134.61^d

CK5

7.93 ± 0.04 ^b

4.88 ± 0.66^f

141.90 ± 5.42^e

20.01 ± 2.39^e

52.06 ± 6.06^f

2460.17 ± 433.60^e

M5

7.94 ± 0.06^ab

20.53 ± 1.53^c

199.93 ± 13.82^a

37.46 ± 2.03^b

152.60 ± 8.85^d

5352.68 ± 121.41^c

O5

8.02 ± 0.11^ab

28.78 ± 2.95^b

201.97 ± 8.42^a

37.38 ± 3.41^b

191.43 ± 8.73^b

6378.19 ± 160.78^b

MO5

7.93 ± 0.10^b

29.36 ± 2.11^b

204.57 ± 14.34^a

38.68 ± 2.27^b

174.80 ± 7.25^c

6341.50 ± 104.14^b

FS

7.98 ± 0.02^ab

36.42 ± 0.65^a

208.37 ± 1.04^a

48.59 ± 4.04^a

225.84 ± 4.22^a

8776.60 ± 345.18^a

Year (A)

*

***

***

***

***

**

Fertilization (B)

NS

***

NS

*

***

**

A×B

NS

NS

NS

NS

NS

NS