Enter soil texture observations on the Soil tab of the Site dashboard.
Soil texture is important for identifying soil and determining how to sustainably use the land.
Soil texture class
Use the Guide button to work through a series of questions to determine the texture class. Once you have answered all of the questions, tap Use This Texture to save the texture class that was identified.
Rock fragment volume
Rock fragment volume measures how much of the soil volume is taken up by rocks, defined as anything larger than 2mm (1/16″) in diameter.
Rock fragment volume can be determined in three ways.
Visual estimate: compare the volume of the soil before and after removing the rocks; compare the volume of rocks removed to the volume of the remaining soil.
Sieve-aided estimate: use a 2mm sieve to separate the rock fragments from the finer soil particles. Then, perform a visual estimate of the volume, using the images in the app as a guide.
Measure and calculate: place the rocks from the sample in a bucket with a known volume of water and measure the change in volume. Then divide that volume by the volume of the original soil sample to get a percentage.
