Factor

Name

Level

1

2

3

Aeration

F1

Aerobic

Anaerobic

-----

Humidity (ml)

F2

0.05

.1

.5

Glucose (g)

F3

0.001

0.01

0

Bacteria (ml)

F4

0

0.01

0.02

Composting (g)

F5

0

0.001

0.01

Temp.(°C)

F6

15

25

35

Salt (g)

F7

0.05

0.01

0.001

Urea (g)

F8

0.05

0.01

0.001

Table 2: Factors and their levels in the first step of experiment per g of soil