In this section, you will find the growing methods in use, the growing techniques, crop protection, disease control and variety choice of tulips, hyacinths and narcissus.

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6.10 Inspection Frequently inspect the moisture of the medium in the trays, the temperature and relative humidity in the rooting room. Also check the temperature and moisture in the standing ground. In dry conditions the temperature will drop rapidly and is difficult to raise to the right temperature during periods of continuing frost. In order to avoid any unplea-sant surprises due to sudden frost, provide adequate cover on the standing ground, preferably bubble plastic. All thermometers and hygrometers used for ta-king readings should be calibrated once every year. Here frugality may prove expensive.