Fertilizer Requirements 61 Fertilizer scheduling

As stated earlier, cardamom is being grown in the rich fertile soils of forest eco-system. Up to the middle of fifties, it was cultivated without any manuring or limited to organic manures, if at all applied. As importance of this spice crop was increasingly felt in the national and international market scenario, its cultivation was taken up in a more systematic and scientific manner and many of the planters started applying chemical fertilizers. de Geus 1973 suggested a fertilizer dose of 45...

Cardamom thrips [Sciothrips cardamomi Ramk

The cardamom thrips Fig. 8.1 is the most destructive and persistent pest of cardamom. Ayyar 1935 reported its infestation on cardamom at Anamalai Hills of Tamil Nadu, and described the pest as Taeniothrips cardamomi, which was later renamed by Bhatti 1969 as Sciothrips cardamomi. Nature of damage and biology of the insect were described by Cheriyan and Kylasm 1941 , Nair 1975 , Anonymous 1985a , Kumaresan et al. 1988 and Krishnamurthy et al. 1989 . The larvae and adults lacerate tissues from...

Conclusion Of Medicinal Plant

Though cardamom is a perennial crop, its growth behaviour resembles more to a biennial crop in the sense that vegetative phase (tillers) emerging in one year turns into reproductive phase during the second year and produce panicles, flowers and capsules. Cardamom, being cultivated as an undergrowth with shade trees, competition for inputs among them makes nutritional management an important practice in realizing optimal yield of the crop. Escalation in cost of fertilizers makes necessary their...

Anatomy Embryology Cytology 21 Anatomy

Portion Enlarged

Tomlinson 1969 and Mercy et al. 1977 carried out preliminary anatomical studies on aerial stem, rhizome, leaf sheath and root of cardamom plants. Aerial stems of leafy shoot has the typical monocot structure with numerous closed collateral endarch vascular bundles scattered in the ground parenchyma Fig. 2.3 . The stem is solid. There is a thin sub-epidermal layer of sclerenchymatous cells separating the inner vascular bundles from the outer ones. Each vascular bundle is surrounded by a...