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Narcissus and Daffodil

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262 M. Kreh<br />

Figure 9.3 Galanthamine content of aerial parts of <strong>Narcissus</strong> ‘Carlton’ over one year.<br />

Upper curve calculated on a dry weight basis; lower curve calculated on a<br />

fresh weight basis.<br />

EFFECT OF FERTILISERS ON THE GALANTHAMINE<br />

CONTENT OF NARCISSUS ‘CARLTON’<br />

The effect of different fertilisers on narcissus growth is well known among bulb<br />

growers. Potassium helps to develop strong bulbs <strong>and</strong> good flowers, phosphorus<br />

leads to good root development <strong>and</strong> strong plants, <strong>and</strong> nitrogen supports the<br />

growth of the leaves <strong>and</strong> the development of the bulb after leaf senescence. Too

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