Manual of Soil Properties and Land Preparation
A comprehensive guide covering soil texture analysis and the transition into seedbed construction.
Steps for the Ribbon Test:
Moisten the Soil: Take a handful of soil and slowly add water until it reaches a consistency like putty.
Knead: Squeeze the soil to break up any lumps. If it is too sticky, it has high clay; if it feels gritty, it has high sand.
Form a Ribbon: Roll the soil between your thumb and forefinger to squeeze it upward into a ribbon.
Measure: > * High Clay: Creates a long, flexible ribbon (over 5cm).
Loam: Creates a medium ribbon (2.5cm – 5cm).
High Sand: Will not form a ribbon or breaks immediately