Translations:Benutzer:Arian/Klett-Mini-Test/1217/en

With regard to dung compost compared with NPK: «in the light», variants 9 and 12 and variants 10 and 11 respectively are to be compared, and «in deep shade» variants 1 and 4 and variants 2 and 3 respectively. Under «C.V.» relative «crystallisation value numbers» are given. These abstract the visual comparison. According to a key, the sum of the individual crystal-texture phenomena is captured in a single number: optimum = 100, pessimum = 0. To the trained eye, the crystal image itself supplies the text for conceptual evidence.