3. Results

The results of our experiment are as shown below:


Table 1: Table of turbidity reading against the amount of fertiliser added



Measurements of the dependent variable
Independent Variable
Sample
Amount of fertiliser added (g)
Turbidity before the start of the experiment without fertilisers solution added  NTU mode (NTU)
Turbidity on the first day of the experiment (NTU)
Turbidity on the second day of the experiment (NTU)
Turbidity on the fifth day end of experiment NTU mode (NTU)
Turbidity difference from the first day of the experiment to the end of the experiment (NTU)
Percentage difference from the start of the experiment to the end of the experiment (%)
1. Amount of NPK
C1
0
19.2
20.6
22.3
30.2
9.6
46.60
C2
0
22.6
24.2
25.6
32.1
7.9
32.64
C3
0
24.5
23.1
26.1
29.1
6.0
25.97
1A
2.5
35.1
40.3
34
50.1
9.8
24.32
2A
2.5
37.3
43.1
62
44.8
1.7
3.94
3A
2.5
36.6
42.6
24
52.9
7.3
17.14
1B
5.0
50.4
61.5
150.3
281.3
219.8
357.40
2B
5.0
51.3
62.1
168.5
283
220.9
355.72

3B
5.0
51.0
60.3
133.2
284.1
223.8
371.14
1C
7.5
40.5
54.1
97.3
210.8
156.7
289.65
2C
7.5
47.6
35.8
107.5
214.3
178.5
498.60
3C
7.5
50.3
33.2
90.1
180.1
146.9
442.47
1D
10
45.1
22.6
49.6
102.6
80.0
353.98

2D
10
45.7
24.7
57.3
95.9
71.2
288.26
3D
10
43.1
24.6
56.3
92.6
68.0
276.42
1E
12.5
46.4
35.1
40.2
50.1
15.0
42.74
2E
12.5
48.2
39.3
43.1
51.6
12.3
31.30
3E
12.5
57.2
34.5
37.7
48.5
14.0
40.58

1F
15
36.2
41.5
103
55.3
13.8
33.25

2F
15
39.1
43.8
51.2
60.4
21.3
49.32

3F
15
35.1
41.6
48.3
54.7
19.6
47.12
From Table 1, the results showed that pondweed flourished between 5g of fertiliser and 7.5g of fertiliser. While the growth of pondweed is much slower when 0g and 15g of fertiliser were added.

Figure 2: Bar Chart of the percentage difference from the start of the experiment to the end of the experiment (%) for all samples


Screen Shot 2017-03-01 at 11.00.09 PM.png
From Figure 2, the results shows that the percentage difference in turbidity is the largest for sample 3B which has 5g of fertiliser added, and that sample 2A which contains 2.5g of fertiliser has the smallest percentage difference in turbidity.

Figure 3: Line Graph
From figure 3, we can conclude that 3B has the largest increase the in turbidity from the start to end with a steep increase, along with sample 1B. Both of which have 5g of fertilser added.

No comments:

Post a Comment