|
Water
requirements |
|
Greens require varying amounts of
rainfall or irrigation to fully charge their root zones and to
accomplish leaching, according to research at the University of
Ohio. Of course, leaching requirements are often a smaller
percetage of the leaching fraction than what was estimated here
and can best be determined by soil testing. Values in the last
column would typically be multiplied by this smaller percentage
(10 to 25 percent) to determine actual leaching requirements. |
|
|
Rainfall depth (inches) to: |
Green
profile |
Root-zone
permeability |
Green
slope (%) |
Initiate drainage outflow |
Achieve constant drainage |
Replace root-zone water |
| Without
a gravel layer |
high |
0 |
1.4 |
4.0 |
4.6 |
|
|
4 |
1.1 |
6.2 |
4.5 |
|
low |
0 |
1.2 |
3.7 |
4.5 |
|
|
4 |
0.7 |
5.1 |
4.6 |
| USGA |
high |
0 |
1.2 |
1.9 |
3.2 |
|
|
4 |
1.4 |
3.4 |
3.8 |
|
low |
0 |
1.0 |
1.9 |
3.8 |
|
|
4 |
1.7 |
2.6 |
4.0 |
| Mean
Standard Error |
|
|
0.3 |
0.9 |
0.1 | |
