S.NO. PARAMETERS CV AV EV
1. pH 6.6 6.9 6.8
2. Electric conductivity 1.68 2.85 2.24
3. Organic carbon (%) 12.40 18.50 16.40
4. Nitrogen (%) 0.62 1.12 0.96
5. Phosphorous (%) 0.50 0.65 0.32
6. Potassium (%) 0.54 0.62 0.74
7. Calcium (ppm) 295 385 410
8. Magnesium (ppm) 113 102 202
9. Sodium (ppm 45 85 73
10. Chloride(ppm) 32 66 48
11. Sulphate (ppm) 10 12 15
12 C/N ratio 20:23 26:32 27:26
Data represents mean value of three determinations
CV=Cow dung vermicompost; AV=Azolla vermicompost; EV=Eichorrnia vermicompost
Table 1: Physical and chemical properties of different vermicomposts.