Research Article
Chemical, Biochemical, and Microbiological Properties of Soils from Abandoned and Extensively Cultivated Olive Orchards
Table 2
Two-way ANOVA analysis of microbial counts and enzyme activities of the soils studied (average values;
).
| | Treatment | Total bacteria (log CFU g−1) | Total fungi (log CFU g−1) | Cellulolytic bacteria (log CFU g−1) | β-glucosidase (units g−1) | Dehydrogenase (units g−1) | Cellulase (units g−1) |
| | Management | P = 0.0004 | P < 0.0001 | P < 0.0001 | P = 0.0004 | ns | ns | | Managed | 9.4 a | 8.0 a | 2.4 b | 16.5 b | 89.3 a | 13.6 a | | Abandoned | 8.7 b | 5.6 b | 4.6 a | 36.5 a | 92.5 a | 16.0 a | | Soil depth | P = 0.0038 | ns | ns | ns | P = 0.0176 | ns | | 0–20 cm | 8.8 b | 6.9 a | 3.5 a | 25.6 a | 105.7 a | 14.7 a | | 20–40 cm | 9.3 a | 6.8 a | 3.5 a | 27.5 a | 76.0 b | 14.8 a | | Management × soil depth | P = 0.0007 | P = 0.0032 | P = 0.0023 | ns | ns | ns |
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ns: not significant; mean values followed by different letters are significantly different between the two management systems.
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