SOIL TEXTURE
Since only one soil used, picture above shows the precipitation of soil texture by layer after it was settled out. We measure and calculated the percentage of the clay, silt and sand layers. Based on our results, we only got 2 layers of soil texture which is layer of silt and layer of sand. Using Soil Textural Triangle, we have determined the type of soil we used. The result obtained is:
Soil texture
|
Height of layer (cm)
|
Percentage
|
Clay
|
0.0
|
0.0/3 x 100 = 0%
|
Silt
|
1.0
|
1.0/3 x 100 = 33.3%
|
Sand
|
2.0
|
2.0/3 x 100 = 66.7%
|
Total
|
3.0
|
100%
|
The soil texture is sandy loam.
WATER HOLDING CAPACITY
All mass of the item shown in picture above. The water holding capacity of the soil is determined by the amount of water held in the soil sample divided by the dry weight of the sample.
Soil
sample
|
Weight
of wet soil (g)
|
Weight
of dry soil (g)
|
Water
loss (g)
|
Percentage
of water holding capacity (%)
|
Soil 1
|
158.79
|
130.32
|
28.47
|
21.84
|
Micronutrient are very important to plant as it ensure the growth of the plant. This can be clearly seen in the growth of the plant different from each other. To identify the nutrient that our soil held, we conduct a lab to analyze type of nutrient that our soil has. In the preparation of the analysis, we analyze three major nutrient which is nitrate, phosphate and sulphate. The reading of the nutrient analysis were taken and the average readings were calculated. Table below shows our readings.
Soil
|
Nutrient Analysis (mg/L)
|
||
Nitrate (NO3-)
|
Phospate (PO4)
|
Sulphate (SO42-)
|
|
Reading 1
|
6.70
|
1.35
|
22
|
Reading 2
|
6.80
|
1.35
|
22
|
Reading 3
|
6.70
|
1.35
|
22
|
Average
|
6.73
|
1.35
|
22
|
PLANTS UPDATE
For the plant progress, our group has started cover each of plant except for the control plant with the box for some hours during the day everyday starting this week on 11 May (week 3), until 25 May since we delay the exact week to cover them. Table below shows the details of each pot of the plant. Pot 1 we set as our control plant which will has good sunlight uptake.
Time |
Each pot covered with box at 8 am
|
Time of box removal
|
|||
9 am
|
10 am
|
12 pm
|
2 pm
|
||
Pot
|
Pot 2
|
Pot 3
|
Pot 4
|
Pot 5
|
|
NOTE: COMMENTS OF WEEK 2 REPORT
Why does Pot 4 has better germination rate compared to other pots?
Further explanation will be posted in next blog report since our group have not discuss this question yet :)
Good.
ReplyDeleteImprovement of presenting data observation.
Easier to follow the progress and for data interpretation.
Don't forget to reconfirm the results from the jar test to determine the soil texture, with results from the sieve analysis test which the group can discuss the accuracy according to particle sizes.
All members confirm report for sieve analysis test which has been assigned to Venu & Mohd Radzmin.
Discuss the results and relate it with soil permeability which can effect the plant and its root growth.
Take note if there are any changes of the leaves colour and the plant growth before and after the plants is covered by boxes reducing the light they received everyday.