Volume: 35 Issue: 4
Optimization of plant population and nitrogen requirement for commercial cultivation of Kalmegh (Andrographis paniculata Nees) under Indo-Gangetic plains of north India
Year: 2013, Page: 168-171, Doi: https://doi.org/10.62029/jmaps.v35i4.Ram
Received: May 14, 2013 Accepted: Nov. 24, 2013 Published: Dec. 31, 2013
To optimize the plant population density and nitrogen requirement of Andrographics paniculata under indo-Gangetic plains, a field experiment was conducted in a sandy loam soil during rainy season (July-October) at the research farm of the Central Institute of Medicinal and Aromatic Pl ants, Lucknow. Sixteen treatments comprising of four plant population dens ities (66,666, 111,111,222,222 and 444,444 plants ha-1 by planting at 50 x 30cm, 30 x 30cm, 30 x 15cm and 15 x 15 cm spacing, respectively) and four nitrogen levels (0, 40, 80 and 120 kg ha-1) were tested in a factorial randomized block design with three replications. Yield contributing traits such as plant height, number of branches per plant, leaf area index (LAI), dry b iomas s and content of di terpenoid lactones (Andrographolide + neo-andrographolide) registered a significant increased at a plant population of 222,222 plants ha-1 and application of 80 kg ha1 nitrogen. The optimum dose of N was worked out to be 90.7 kg ha1 that gave a maximum dry biomass yield of 3833.7 kg ha1.
Keywords: Agro-practices, Andrographics paniculata, Kalmegh, Plant density, N-dose
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© Central Institute of Medicinal and Aromatic Plants (CSIR-CIMAP), Lucknow (India)
Muni Ram, Dasha Ram, Man Singh. 2013. Optimization of plant population and nitrogen requirement for commercial cultivation of Kalmegh (Andrographis paniculata Nees) under Indo-Gangetic plains of north India. J Med Aromat Plant Sci 35: 168-171.
