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- Title
Utilization of heavy metal-rich tannery sludge for sweet basil ( Ocimum basilicum L.) cultivation.
- Authors
Chand, Sukhmal; Singh, Shweta; Singh, Vinay; Patra, D.
- Abstract
Unlike food crops, essential oil-bearing crops in which the oil is extracted through hydro-distillation can be a suitable crop to be grown in heavy metal-polluted soils as the oil does not carry any heavy metal. In a field experiment conducted at CIMAP, Lucknow, India during 2011 and 2012, influence of six doses of tannery sludge viz 0, 10, 20, 30, 40, and 50 t ha were tested, taking sweet basil ( Ocimum basilicum) as the test crop. Maximum herb yield was obtained with the application of sludge at 20 t ha. While in root, accumulation of Cd and Pb increased significantly up to 20 t ha, Cr accumulation increased with increasing the dose of tannery sludge reaching maximum at 50 t ha. Essential oil yield of basil ( Ocimum basilicum) was significantly affected due to sludge application. Quality of essential oil, in term of chemical constituents, however, was marginally influenced due to tannery sludge application.
- Subjects
ESSENTIAL oils; BASIL oil; METAL wastes; SEWAGE sludge; EFFECT of pollution on plants; RADIOACTIVE contamination; PLANTS
- Publication
Environmental Science & Pollution Research, 2015, Vol 22, Issue 10, p7470
- ISSN
0944-1344
- Publication type
Article
- DOI
10.1007/s11356-015-4446-2