Five soils of different compositions where used in the experiment and where taken from the following locations and respectively, they are labelled as S1, S2, S3, S4 and S5;
S1: Kg Pulau Penampang, Menggatal
S2: Outdoor Development Centre (ODEC), Universiti Malaysia Sabah (UMS)
S3: Residential College E, UMS
S4: Residential College E, UMS
S5: Mengkabong Lagoon, Tuaran
The experiment started on 21.4.2017.
The plant used in the experiment was padi huma bakilong. Before planting began, the soil texture and composition was taken and examined. 500 gram of each soil was wet and measured. Afterwords, the soil was left outside to dry until it was needed for a future experiment (nutrient and heavy metal analysis). The pH of each soil was also taken using a Universal Indicator (UI) and a pH Meter. The soil texture was also measured by feel and also by using the Jar Test. The following are the results of the pH and the soil texture from the Jar Test. The layers were taken after 24 hours of being left.
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| Figure 1: Four of the five soil types in the lab |
S1
Percent silt: 0%
Percent clay: 88.889%
Percent sand: 11.111%
Soil type: Clay
Soil pH (UI): 5
Soil pH (pH Meter): 2.95
S2
Percent silt: 0%
Percent clay: 0%
Percent sand: 100%
Soil type: Sand
Soil pH (UI): 6
Soil pH (pH Meter): 4.98
S3
Percent silt : 0%
Percent clay: 22.222%
Percent sand: 77.778%
Soil type: Sandy Clay Loam
Soil pH (UI): 4
Soil pH (pH Meter): 2.46
S4
Percent silt: 36.364%
Percent clay: 13.636%
Percent sand: 50.000%
Soil type: Loam
Soil pH (UI): 6
Soil pH (pH Meter): 5.85
Percent silt: 22.222%
Percent clay: 5.556%
Percent sand: 72.222%
Soil type: Sandy Loam
Soil pH (UI): 3
Soil pH (pH Meter): 2.46
Following the tests, the seeds of the padi huma bakilong were planted in five pots each containing one of the five soil types. Each pot was planted with 54 seeds, with 6 seeds being put in 1 hole. There are 9 holes in each plant.
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| Figure 2: S5 on Day 1 |
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| Figure 3: S4 on Day 1 |
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| Figure 4: S3 on Day 1 |
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| Figure 5: S2 on Day 1 |
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| Figure 6: S1 on Day 1 |
The pots are watered twice a day with 500 ml of water. Once per day, the height of each plant is taken. The following are the results of the plant height, germination rate, mortality rate and deficiency symptoms (if any) after 1 week on 28.4.2017:
S1
Average plant height: -
Germination rate: 0 %
Mortality rate: 100 %
Deficiency symptoms: -
S2
Average plant height: 6.667 cm
Germination rate: 61.111 %
Mortality rate: 38.889 %
Deficiency symptoms: None observed
S3
Average plant height: -
Germination rate: 0 %
Mortality rate: 100 %
Deficiency symptoms: -
S4
Average plant height: 8.667 cm
Germination rate: 100 %
Mortality rate: 0 %
Deficiency symptoms: None observed
S5
Average plant height: -
Germination rate: 0 %
Mortality rate: 100 %
Deficiency symptoms: -
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| Figure 7: Germinating seedlings in soil S4 |
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| Figure 8: Germinating seedlings on Day 7 in soil S2 |
Please revise:
ReplyDelete(1) pH data that were both taken from pH paper and pH meter.
(2) I would like to check on the report how the soil texture were determined by feel (Pictures) and textural triangle diagram for each soil. Post it on the blog.
For textural triangle diagram assigned this task to Avyracheal.
(3) When was the composition of the soil texture from each soil taken? Was it at least more than 24 hours.Can't be clearly seen layers from the picture.
Tasks:
If the germination is very good from each pot, next week Friday dug out 3 groups/holes of paddy plants carefully from each soil type to avoid. Groups meaning 'one hole' seeds that were sowed together as reported "with 6 seeds being put in 1 hole. There are 9 holes in each plant.".
Measure the whole length of the plant, shoot length and root length.
Measure the plant weight.
Then air-dry the plants.
Measure the air-dried plant weight.
Make sure that members is not confuse which plants grow from which soil.