Table 7:
Some physical-chemical characters of water in Selinda canal before and after eradication of
pistia stratiotes
.
Nutrients
Before control
After control
pH units
6.95
7.65
EC, µS cm
-1
315
143
Dissolved O
2
2.1
4.9
NO
3
-N mg L
-1
4.7
0.77
PO
4
-P mg L
-1
2.8
0.16
K mg L
-1
7.9
3.7