About Lesson
Range of available water holding capacity of soil:
|
Soil type |
Percentage moisture based on dry wt. of soil |
Depth of available per unit of soil |
|
|
F.C |
P.W. % |
Cm per m depth of soil |
|
|
Fine sand |
3-5 |
1-3 |
2-4 |
|
Sandy loam |
5-15 |
3-8 |
4-11 |
|
Silt loam |
12-18 |
6-10 |
6-13 |
|
Clay loam |
15-30 |
7-16 |
10-18 |
|
Clay |
25-40 |
12-20 |
16-20 |
Note:
- RAM: It is the amount of moisture between FC and PWP which is easily attracted by the plants.
- Run off losses: It is the total amount of water that flows off lower end of the field.