Translations:Benutzer:Arian/Klett-Mini-Test/1066/en

With merely object-bound thinking, this subtle activity in and around the root hairs cannot be grasped. These life processes and sense processes — attuned to one another in simultaneity, woven together as it were — are sensitively disturbed or degree by degree blocked by the application of synthesized nitrogen salts. The plant roots have no capacity to distinguish the origin of the dissolved nitrogen salts. If their concentration rises through continued external supply, the activity of the root hairs flags. The roots become metabolically weak and