1 - Soil: sand: cow dung (1:1:1 ratio- control treatment); T2- Soil: partially decayed municipal waste (1:1); T3 - Soil: partially decayed coir waste (1:1); T4- Soil: partially decayed tea waste (1:1); T5 - Soil: partially decayed municipal waste: sand (1:1:1); T6 - Soil: partially decayed coir waste: Sand (1:1:1); T7 - Soil: partially decayed tea waste: sand (1:1:1).