Influence of Vermicompost on Dry Matter Yield and Uptake of Ni and Cd by Chamomile (Matricaria chamomilla) in Ni- and Cd-Polluted Soil
2012
Chand, Sukhmal | Pandey, Ankit | Patra, D. D.
An experiment was conducted under simulated condition to study the influence of vermicompost on growth, yield and heavy metal accumulation by chamomile (Matricaria chamomilla), an important essential oil bearing crop grown under simulated condition. Nickel and Cadmium applied at 20 mg kg−1 soil significantly enhanced the dry matter yield of the crop as compared to the control (no heavy metal). The results also revealed that addition of vermicompost (at 2.5 g kg−1 soil) enhanced the heavy metal accumulation by chamomile in metal-treated soil. Although a sizeable amount of metals were being translocated to flowers, the essential oil extracted by hydrodistillation of flowers did not contain any heavy metal. Similarly, chemical constituents of the oil of chamomile were within the range of those obtained from chamomile grown under normal soil condition.
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