Q. For irrigation purposes, the p-H value of water should be (Solved)
1. between 3 and 6
2. between 6 and 8.5
3. between 8.5 and 11
4. more than 11
- b. between 6 and 8.5
1. between 3 and 6
2. between 6 and 8.5
3. between 8.5 and 11
4. more than 11