Table 3 The impact of biochar on cob diameter and cob length grown in spring and autumn seasons with wastewater.

From: Enhancing maize productivity by mitigating alkaline soil challenges through acidified biochar and wastewater irrigation

Biochar rate (Mg ha−1)

Cob diameter (mm)

Cob length (cm)

SPAD value

Spring 2022

 0

41.34 ± 1.38a

18.04 ± 0.14a

56.57 ± 3.88a

 5

44.27 ± 0.76a

19.39 ± 0.28a

59.77 ± 3.84a

 10

42.87 ± 3.67a

19.51 ± 0.54a

60.63 ± 2.72a

Autumn 202

 0

41.71 ± 0.98a

18.45 ± 0.51a

60.27 ± 1.31a

 5

43.78 ± 1.07a

19.22 ± 0.37a

61.3 ± 4.73a

 10

44.96 ± 1.06a

19.3 ± 0.50 a

61.93 ± 4.74a

  1. Values are the mean and standard deviation (n = 3). Values with the same letters within the season are statistically not significant at p < 0.05.
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