This week (12 May 2017) we watered the plants at 250 ml per session. The watering frequency remained the same, which is twice a day every weekdays. Based on the observations we made, Pot D still shows the same deficiency symptom and has not made any improvements. This proves that over watering was not the main cause. Which arises another probability that the cause of the deficiency symptom is due to nutrient related problems and also the soil pH. Since soil D has the lowest (most acidic) pH value among the other samples, it may affect the nutrient availability. This will be further discussed on the summary of this Mini Project.
Pot A
i. Germination rate: 82%
ii. Mortality rate: 0%
iii. Deficiency symptoms: None
Pot B
ii. Mortality rate: 0%
iii. Deficiency symptoms: None
Pot C
ii. Mortality rate: 0%
iii. Deficiency symptoms: Yellowing of leaves
Pot D
ii. Mortality rate: 8.2%
iii. Deficiency symptoms: Yellowing and browning of leaves
Pot E
ii. Mortality rate: 0%
iii. Deficiency symptoms: Slight yellowing of leaves
We also dug out 10 plants from each pot and left them to dry. This is to record the plants growth rate.
The same method will be carried out again after the plants are about a month old. The reading differences will determine the growth rate of plants from each pot.
Data for plants of about 2 weeks old:
Soil Sample
|
Average Length (cm)
|
Fresh Weight (g)
|
Dried Weight (g)
|
||||
Whole
|
Shoot part
|
Root Part
|
Whole
|
Shoot Part
|
Root Part
|
||
A
|
40.83
|
32.97
|
7.86
|
2.60
|
0.69
|
0.48
|
0.21
|
B
|
37.08
|
31.07
|
6.01
|
2.12
|
0.49
|
0.32
|
0.17
|
C
|
23.87
|
18.52
|
5.35
|
1.45
|
0.33
|
0.16
|
0.17
|
D
|
23.90
|
19.43
|
4.47
|
1.37
|
0.36
|
0.21
|
0.15
|
E
|
35.84
|
28.48
|
7.36
|
2.55
|
0.62
|
0.42
|
0.20
|
Soil Sieve Analysis
This test is done to determine the grain size distribution of each soil sample used for growing Padi Huma Taragang.
Soil A
Initial dry weight: 275 g
Soil B
Initial dry weight: 380 g
Soil C
Initial dry weight: 320 g
Soil D
Initial dry weight: 160 g
Soil E
Initial dry weight: 275 g
Figure 6: Grain size distribution curves of each soil sample
Further discussion on the results obtained above will be made in the full report.
I have noticed that this group have very significant growth development of the padi plant even comparing with pictures of each week.
ReplyDeleteIt might be interesting if the group can also have a collective of growth picture side by side for each soil samples.
It represents the progress of the plant growth from the seeds germinated until after a month old (early stages of growth).
Depending on the soil sample some continuously grow healthy, while some begin to show deficient/excessive symptoms.
Take note everything need to be in balance, if certain element is lack or excess it can inhibit certain element to be absorb.
It will be more interesting as well to have picture of the root growth from each soil samples does it correspond with what we see not hidden in the soil, the shoot health.
Also with graphical presentation presentation.