The purpose of this lab was to test for which soil type would be best for food production. The tests included Forest Soil, Floodplain Soil, and Garden Soil. We predicted that garden soil will have the best properties for food production because we expected it to have the highest value of nutrients for plants to grow in and a soil composition that is fit for food production (ex. Water Holding, etc). To test our hypothesis, we ran tests measuring Percent Water Content, Organic Material, Nitrates, Phosphates, Potassium, and Percent Sand, Silt, and Clay. The first test we conducted was the Percent Water Content; to determine the value, we massed soil in a tin cup, heated the tin cup and soil in the microwave for 24 hours, and then re-massed the soil and tin cup. The purpose of this being to evaporate the water from the soil, ultimately finding how much water is in the soil. Upon calculating this value, we divided it by the amount of soil and multiplied it by 100 to find the percent water in the soil.
(Figure 1) (Parajuli, 2013)
The test results for Floodplain soil were 28% (T1) and 32%(T2); Forest soil was 18:08%(T1), 10%(T2), 14.37%(T3); and Garden soil was 34.25%(T1).
The second test we conducted was the Organic Material Test; to determine the amount of organic material in each sample of soil. To determine the value, we added a dissolving acid and water to a soil sample, agitated the sample until it had fully dissolved, and then allowed a 24 hour window before collecting…