Padi Sawah Week 2

Correction on soil pH from week 1

The pH of soil C which is soil from ODEC using the pH meter is actually 6.17 and not 7.17 as written on week 1.

Soil texture triangulation

To determine the texture of the soils, they're placed into bottles filled with water and left to settle. This allows the different components of the soil which are sand, silt, and clay to settle down and enables us to measure its height and calculate the soil texture using the Soil Textural Triangle.

	PARKING LOT	FSSA	MENGKABONG	1B	ODEC
SAND	1.2 CM	1.3 CM	2.5 CM	1.5 CM	2.2 CM
SILT	2.0 CM	1.9 CM	1.3 CM	1.3 CM	0.3 CM
CLAY	2.0 CM	0.1 CM	2.2 CM	0.2 CM	0.1 CM
TOTAL	5.2 CM	3.3 CM	6.0 CM	3.0 CM	2.6 CM

Soil A: Mengkabong

Sand = 2.5/6.0 X 100 = 41.67%

Silt = 1.3/6.0 X 100 = 21,67%

Clay = 2.2/6.0 X 100 = 36.67%

Soil Texture: Clay Loam

Soil B: Kampung E Parking Lot

Sand = 1.2/5.2 X 100 = 23.08%
Silt = 2.0/5.2 X 100 = 38.46%
Clay = 2.0/5.2 X 100 = 38.46%

Soil Texture: Clay Loam

Soil C: ODEC

Sand = 2.2/2.6 X 100 = 84.62%
Silt = 0.3/2.6 X 100 = 11.54%
Clay = 0.1/2.6 X 100 = 3.85%

Soil Texture: Loamy Sand

Soil D: FSSA Garden

Sand = 1.3/3.3 X 100 = 39,40%
Silt = 1.9/3.3 X 100 = 57.58
Clay = 0.1/3.3 X 100 = 3.03%

Soil Texture: Silt Loam

Soil E: 1Borneo

Sand = 1.5/3.0 X 100 = 50.0%
Silt = 1.3/3.0 X 100 = 43.33%
Clay = 0.2/3.0 X 100 = 6.67%

Soil Texture: Sandy Loam

Dry Mass

Dry mass of each soil is measured and recorded. The results are shown in a table below.

Soil	Initial Weight(g)	Final Weight(g)	Weight Loss(g)
A	131.75	102.54	29.21
B	104.98	103.07	1.91
C	164.82	161.39	3.43
D	99.78	88.61	11.17
E	194.87	188.61	6.27

 Plant Growth

For week 2, the plants are watered on alternate days with 500 ml of water for each pot. The growth of plants are measured and recorded.






Soil A: Mengkabong

Seedlings observed: 0

Average height: 0cm














Soil B: Kampung E Parking Lot

Seedlings observed: 26

Average height: 20.4 cm

















Soil C: ODEC

Seedlings observed: 24

Average height: 16.8 cm

Soil D: FSSA Garden

Seedlings observed: 24

Average height: 15.8 cm

Soil E: 1Borneo

Seedlings observed: 25

Average height: 15.4










Nutrient Analysis

In order to obtain the levels of 3 major nutrients in the soil which are Nitrogen, Phosphorous, and Sulphur, a lab experiment is conducted. Each test is carried out 3 times and the average result is obtained. The results are observed and recorded in a table below.

Soil	Nitrate(mg/l)	Phosphate(mg/l)	Sulphate(mg/l)
A(Mengkabong)	0.50	0.99	Out of detection limit
B(Kg. E Parking Lot)	1.07	1.12	18.3
C(ODEC)	1.23	1.07	16
D(FSSA Garden)	1.30	Out of detection limit	1
E(1Borneo)	1.03	0.10	5

Plant Length

In order to measure the degree of growth of plant, 10 plants are chosen randomly from each pot and their root length, shoot length, and overall length are measured and recorded. The results obtained are shown in a table below.

Soil	Overall Length(cm)	Shoot Length(cm)	Root Length(cm)
A(Mengkabong)	0	0	0
B(Kg. E Parking Lot)	33.16	28.12	5.04
C(ODEC)	31.4	25.29	6.13
D(FSSA Garden)	32.97	26.41	6.56
E(1Borneo)	28.01	24.17	3.84