Es ii soil properties

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Es ii soil properties

  1. 1. HOLISTIC EDUCATION and DEVELOPMENT CENTER The Little Farm House HIGH SCHOOL DEPARTMENT AY 2010 – 2011 ENVIRONMENTAL SCIENCE II Laboratory Report on Soil PropertiesName: Roberto P. Jimenez Date: Oct. 10 2010Section: Yr. 2 Mandela Score: ____________________GENERAL DIRECTIONS: Answer each question briefly but concisely. Use your own words. List your references at theend of this report. Feel free to add spaces to accommodate your answer but DO NOT CHANGE THE FORMAT of thisdocument. Submit this report via email to hgc_hedcen@yahoo.com on or before Wednesday, October 13, 2010.Water Holding Capacity1. List the materials used in determining the soil’s water holding capacity. The materials used for determining the water holding capacity is soil, bottle and water.2. Draw a detailed flowchart of the steps you followed. (You may submit this separately if you’re not proficient with Word.)3. Show how you computed for the water holding capacity of your soil sample in the space below. WHC=wet wt – dry wt. /dry wt WHC=177.82-153.17/153.17 =0.16Drainage1. List the materials used in determining the soil’s drainage. The materials we used for the soil’s drainage is a stopwatch, graduated cylinder and the super saturated soil2. Draw a detailed flowchart of the steps you followed. (You may submit this separately if you’re not proficient with Word.)Soil Texture1. List the materials used in determining the soil’s texture. The materials used for determining the soil texture is a soil texture triangle and the height of the sand, silt and clay.2. Draw a detailed flowchart of the steps you followed. (You may submit this separately if you’re not proficient with Word.)3. Determine the soil texture of your soil sample by using the soil texture triangle below. Sandy Loam
  2. 2. Data Table1. Obtain the data of the other section for comparison.2. Complete the following data table: Section Group # (Include names) WHC Drainage Soil Texture Aquino 1 (Justin Cabangon, 0.32 6.2 s Diego Felizardo, Nicole Cabuquit) 2 0.26 317 s 3 0.20 0.05 s 4 (Basil Nacionales, Luigi 0.25 63 s Silt Fernandez, Peter Lee) 5 0.28 19.94 s Average 0.262 81.24 sMandela 1 (Skie Carranza, Crio 0.22 8.44 s Sevilla, Seth Rasul) 2 (Jason Aquino, Tin 0.16 306 s Sandy Clay Capulong, Robert Jimenez) 3 (Anton Solatorio, 0.22 8.82 s Sandy Clay Frances Brinas, Bryan Lacson) 4 (Jianne Garcia, Bryce 0.18 306 s Sandy Clay Reyes, Mary Rose Obra) 5 (Jason Layug, Kryzzia 0.24 2.8 s Sy) Average 0.204 126.412Discussion1. Enumerate at least 3 sources of error for this laboratory activity. Explain how the laboratory activity may be modified to minimize the error from each of these sources. The 3 sources of error for this laboratory activity is soil, because soil makes flooding which is an error for this. I can’t think of others. We can minimize the error if we lessen the exposure of water from the soil.2. Which soil sample (Mandela or Aquino) is better for gardening? Justify your choice. The soil sample that is better for gardening is group 1 of section Aquino. It’s better for gardening because it has higher water holding capacity which means that the soil can absorb water faster and easier. If it’s faster and easier, the roots will get wet as soon as possible.3. Suppose you were hired as a consultant in a farm. Your job is to insure the farm’s productivity while maintaining its soil quality. What steps would you recommend to the farm owner to achieve this goal? I would like to recommend that they don’t put chemical fertilizers too much because if they use chemical fertilizers, the soil will have “alien” chemicals that even the plant would even die. Don’t also water too much because if the water it too much, the soil will cause flooding that the plant and the soil will be affected.References

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