Αποτελέσματα Αναζήτησης
Directions: Using your soil texture chart and example, determine the following soil textures using the percentages given. REMEMBER: all your percentages should add up to 100!
The soil texture triangle is used to determine the name of the soil texture. There are 12 soil textural classes. This triangle is used so terms like “clay” or “loam” always have the same meaning. Each texture corresponds to specific percentages of sand, silt, or clay.
Use soil triangle to find type of soil from the percent of sand, silt, and clay found in the soil samples. Students will work with soil textures to decide what their capacities are for plant growth. Identify and locate geometric shapes and patterns within the soil triangle.
To perform the soil ribbon test, follow the chart on the next page. 1. Based on the soil ribbon test, what is the soil texture for each of the soil types tested? 2. What impact will the texture have on the ability of water to move through the soil? 3. What impact will the texture have on the nutrient holding capacity (e.g. CEC) of the soil? 1.
This document contains instructions and worksheets for determining soil texture using a soil textural triangle. The triangle shows the percentages of sand, silt, and clay that define different soil textures.
Follow these steps to determine the textural class name of your soil sample: 1) Place a plastic sheet or tracing paper over Textural Triangle 3. Place the edge of a ruler at the point along the base of the triangle that represents the percent of sand in your sample. Position the ruler on
1. How to read a Soil Triangle: http://www.youtube.com/watch?v=bAYzoVliNFQ a. The SAND axis reads from the bottom, right to left. b. The SILT axis reads from the right side, right to left. c. The CLAY axis reads from the left side, straight across. 2. Now it is your turn to use the Soil Texture Triangle. Soil Textural Triangle Practice Exercises
