Table 1.
Soil microorganisms under continuous potato cropping.
Table 2.
Soil microorganisms under potato–legume rotation systems.
Fig 1.
Effect of continous potato cropping on soil Fungi/bacteria ratio.
Different letters denote statistically different values at p<0.05. Error bars represent the SE. Mean values ± SE (n = 3), and means comparison based on Duncan’s multiple range test (p<0.05).
Fig 2.
Effect of potato–legume rotation on soil Fungi/bacteria ratio.
Different letters denote statistically different values at p<0.05. Error bars represent the SE. Mean values ± SE (n = 3), and means comparison based on Duncan’s multiple range test (p<0.05).
Table 3.
Azotobacter and nitrifying and denitrifying bacteria’s under continuous potato cropping.
Table 4.
Azotobacter and nitrifying and denitrifying bacteria’s under potato–legume rotation systems.
Table 5.
Soil enzyme activity under continuous potato cropping.
Table 6.
Soil enzyme activity under different potato–legume rotation systems.
Fig 3.
Effect of continous potato cropping on potato tuber yield (kg ha–1).
Different letters denote statistically different values at p <0.05. Error bars represent the SE. Mean values ± SE (n = 3), and means comparison based on Duncan’s multiple range test (p <0.05).
Fig 4.
Effect of potato–legume rotation on potato tuber yield (kg ha–1).
Different letters denote statistically different values at p<0.05. Error bars represent the SE. Mean values ± SE (n = 3), and means comparison based on Duncan’s multiple range test (p<0.05).
Table 7.
Correlation coefficient between soil microbial and enzyme activity.