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Table 1 Mean values (±standard errors) of enzymatic activities and soil respiration in R - and S -carvone treated samples

From: Effects of the two carvone enantiomers on soil enzymes involved in the C, P, and N cycles

Week Enzymatic activity Soil respiration (mg CO 2d -1)
Dehydrogenase (μg g -124 hr -1) Alkaline phospho-monoesterase (mg kg -1 hr -1) Urease (mg kg -12 hr -1)
R-(-) carvone S-(+) carvone R-(-) carvone S-(+) carvone R-(-) carvone S-(+) carvone R-(-) carvone S-(+) carvone
1st 9.4 ± 0.71 13.2 ± 0.69 444.1 ± 40.2 468.6 ± 21.4 129.7 ± 5.94 25.2 ± 2.84 6.5 ± 0.18 5.2 ± 0.72
2nd 15.7 ± 0.66 11.8 ± 0.56 390.5 ± 27.2 481.2 ± 16.1 102.1 ± 8.87 18.1 ± 1.37 2.5 ± 0.04 2.5 ± 0.10
3rd 11.2 ± 0.35 10.4 ± 0.60 577.7 ± 19.4 445.6 ± 38.6 81.9 ± 5.12 47.9 ± 1.07 4.7 ± 0.06 4.1 ± 0.05
4th 12.4 ± 0.34 12.1 ± 0.59 544.3 ± 71.6 390.9 ± 15.2 62.5 ± 4.09 22.5 ± 2.13 1.0 ± 0.04 0.9 ± 0.02