Page 31 - soil-plant-water relationship and water requirement
P. 31
SOIL-PLANT-WATER RELATIONSHIP AND WATER REQUIREMENT
7. Results of infiltration tests carried out on the farm, the graph of infiltration, cm against
time, min are plotted below.
graf log i melawan log t
1
0.8
1.5, 0.75
0.6
log i 0.4 1, 0.35 Series1
0.2
0 0.5, 0.05
0 0.5 1 1.5 2
-0.2
0, -0.3
-0.4
log t
From the graph of log i against log t above, calculate;
i. constant C and
ii. infiltration depth and infiltration rate after 3.5 hours
22
