Verbesserung der Herstellung von Tabakpflanzen mit dem Schwimmsystem.

摘要

Process for the production of tobacco plants which have small root bulbs and are suitable for transplanting, in which the small root bulbs which contain the plantlets on a support compost are placed on a tray which floats on a container containing water whose level is kept constant, characterised in that the water of the container initially contains the total amount of nutrients required for the development of the plant until it is transplanted, the liquid level in the container being kept constant only by the supply of water. The water of the container advantageously has an initial nitrogen concentration of between 4 and 8 milliequivalents of nitrogen per litre of water.