STANDARD VALUES RELATED TO SOIL

Soil value (German: Bodenwertzahl) or BWZ is a comparative assessment of soil quality used in Germany. It is determined from soil sampling data and ranges from 0 (very low) to 100 (very high). 

Soil quality       Range of values       Color

Very poor             0 - 18                     Brown

Poor                    18 - 35                      Red

Medium              35 - 55                   Orange

High                    55 - 75                   Yellow

Very High           75 - 100                  Green 

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