# Soil testing lab

by ksuedomi (student)

Kenmaru Suedomi, Juan Jose Montoya, H Block

Soil Testing Lab Experiments

Observation of the soil area (Soil A and Soil B)

• Some plants are seen nearby the soil
• The soil is not wet but not dry
• Most of plants are glass
• Some organic matters can be seen (flowers and insects)
• Greenish color
• Some Brownish color
• Plants are growing but not that much

Soil Texture by feel (Soil A and Soil B)

• When the soil remain in a ball and is squeezed, it forms a thin ribbon which breaks readily, barely sustaining its own weight
• Not very smooth
• Not very sandy
• More like a clay
• The soil has some sand but not a lot

By following the paper “Guide to Texture by feel”, it shows that Soil A is clay loam and Soil B is clay.

Percent of Water = Loss in mass after drying / mass of original soil * 100

Masses of the soil and pans (+/- 0.01g)

Sample Calculation:

1. Soil Water = 160.35 – 138.2 = 22.15
1. Mass of original soil = 160.35 – 13.30 = 147.05
1. % Water in the soil = 22.15 / 147.05 * 100 = 15%

Soil Texture

Masses of soil sediments (+/- 0.01g)

Sample Calculation:

1. Mass of total soil = 11.25 + 12.90 + 19.01 = 43.16

Percent of each kind of sand, silt and clay and soil texture

Sample Calculation:

1. % Clay = 11.25 / 43.16 * 100 = 26

% Silt = 12.90 / ...