Paper
Effect of irrigation and nitrogen on plant growth and stalk yield of lemongrass (Cymbopogon flexuosos S.)
Published May 1, 2016 · Ramendra Singh, Siddhartha Singh, B. Sharma
Tropical Plant Research
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Citations
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Influential Citations
Abstract
Lemon grass (Cymbopogan flexuosus S.) is an aromatic plant which grows in many parts of tropical and subtropical South East Asia and Africa, origin in Indo-Burma region and is native to India. Lemon grass is a tall, perennial hedge throwing up dense fascicles of leaves from a short rhizome. The crop is cultivated to obtain citral-rich essential oil used in the perfumery, cosmetic and pharmaceutical industries. Lemon grass has powerful pain relieving properties and useful for all types of pain including abdominal pain, headache, joint pains, muscle pain, digestive tract spasms, muscle cramps, stomachache and others. It can work as antifungal and anti-bacterial agent. Due to presence of vitamin A, lemon grass is helpful for skin issues such as acne pimples. Citral, found in lemon grass, can harm cancer cells (http://healthers.org/lemongrass/). Traditionally lemongrass is grown in high rainfall area as a rainfed crop. But under semi-arid tropical conditions, lemongrass thrives well under irrigated conditions. A temperature ranging from 20–30 oC and good sunshine throughout the year is conducive to high crop yield with better oil content. Research showed that herb yield can be increased with nitrogen application (PrakasaRao et at. 1991). Hence the present studies were conducted to study the agronomical investigation on lemongrass under semi-arid tropical conditions. MATERIALS AND METHODS The field experiment was carried out at the ACE farm of Fieldfresh Foods Pvt. Ltd, Ladhowal, Ludhiana during summer season 2013. The soil of the plot was a rich alluvial loam soil with medium fertility slightly high pH of 7.8. The soil contains 0.32% organic carbon 198 kg.ha -1 available N, 13.2 kg.ha -1 available P20 and 181.4 -1 exchangeable K₂O. The water holding capacity of the soil was 12.1 % at 0.3 mpa. The climate of the experimental site is characterized as sub- tropical condition. The mean minimum and maximum temperature ranges between 5–20 °C and 18–42 °C, respectively. The relative humidity is high which ranges between 65% and 90%. Rooted stalks of lemongrass were transplanted in the experimental plot and full doses of P₂O₅ and K₂O at 40 kg.ha -1 were applied as single superphosphate and muriate of potash at the time of planting. Nitrogen was applied in six equal stalk doses at 60 days interval in the form of urea by placing at 5 cm below the soil in between the rows of lemongrass. Weekly irrigation was given depending upon the climatic conditions and weeds removed by hand whenever necessary. The experimental treatments consisted of three level of irrigation (0.25, 0.50 and 0.75 IW:
Irrigation and nitrogen application can increase lemongrass plant growth and stalk yield under semi-arid tropical conditions, with higher oil content and better pain relief properties.
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