Buchweizen, Raps, Senf, Zuckerrüben, Hafer und Kartoffeln entnehmen den Stickstoffbedarf gänzlich aus Salpetersäure-Verbindungen ( Nitrate ).
Erhalten diese Pflanzen den Stickstoff in Form von Ammoniakdünger, so vermögen sie denselben nur in dem Maße zu verwerten, als das Ammoniak in Salpetersäure durch die Mikroorganismen des Bodens überführt wird.
www.biologie.uni-hamburg.deBuckwheat, rape, mustard, sugar beets, oat and potatoes can take up their complete nitrogen from nitric acid or its compounds.
If these plants are fed with nitrogen in the form of ammonia, then they can use it only as far as it is transformed into nitric acid by micro-organisms of the soil.
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