Table 3 Effects of compost extracts on the germination parameters of cucumber, amaranth, cowpea and tomatoes. Data shows Mean ± SD (n = 4). Different letters indicate treatment means significantly different for each parameter at P < 0.05.

From: Biochar addition influences C and N dynamics during biochar co-composting and the nutrient content of the biochar co-compost

 

Cucumber

Amaranth

Treatment

RSG (%)

RRE (%)

GI

RSG (%)

RRE (%)

GI

0%B

94.9 ± 6.4 a

81.9 ± 7.6 b

83.4 ± 16.2 a

65.3 ± 6.2 b

72.4 ± 4.8 b

51.6 ± 5.9 b

5%RHB

94.3 ± 4.9 a

95.3 ± 14.8 ab

85.9 ± 14.9 a

80.1 ± 10.7 ab

90.7 ± 6.3 a

72.9 ± 8.2 ab

10%RHB

92.4 ± 2.5 a

105.1 ± 15.2 a

97.1 ± 12.3 a

87.0 ± 4.5 a

92.9 ± 9.9 a

81.2 ± 7.6 a

5%CCB

91.9 ± 8.7 a

96.3 ± 6.0 ab

90.7 ± 16.8 a

71.3 ± 7.5 ab

83.7 ± 3.5 ab

55.5 ± 6.3 ab

10%CCB

96.2 ± 7.2 a

101.3 ± 20.3 a

90.4 ± 23.7 a

85.3 ± 9.1 a

91.6 ± 6.3 a

76.3 ± 6.6 a

 

Tomato

Cowpea

0%B

75.0 ± 2.9 a

24.7 ± 5.4 c

18.5 ± 9.1 c

100.0 ± 0.0 a

70.6 ± 2.2 b

71.6 ± 2.2 b

5%RHB

82.4 ± 4.8 a

43.3 ± 3.5 b

35.8 ± 4.8 b

96.7 ± 3.3 a

89.7 ± 8.6 a

86.7 ± 9.2 a

10%RHB

77.9 ± 7.4 a

48.7 ± 5.6 a

51.0 ± 7.8 a

97.8 ± 3.8 a

91.8 ± 8.9 a

89.8 ± 8.5 a

5%CCB

84.8 ± 5.6 a

40.9 ± 7.8 b

35.9 ± 7.9 b

97.8 ± 1.9 a

86.1 ± 5.7 a

84.0 ± 7.2 ab

10%CCB

79.4 ± 8.0 a

47.3 ± 7.9 b

36.7 ± 6.1 b

96.7 ± 3.3 a

94.2 ± 4.7 a

91.1 ± 6.7 a

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