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Effect of soil moisture regime, nitrogen and modified urea materials on yield and quality of geranium (Pelargonium graveolens) grown on alfisols

Published online by Cambridge University Press:  01 September 1999

M. SINGH
M. SINGH
Affiliation:
Central Institute of Medicinal and Aromatic Plants, Field Station, Allalasandra, GKVK Post, Bangalore-560 065, India
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Abstract

Two field experiments were conducted during 1996–98 at Bangalore, India to study the effect of soil moisture regimes (0·3, 0·6 and 0·9 IW:CPE ratios) irrigation water:cumulative pan evaporation (IW:CPE) ratios and three rates of nitrogen application (0, 100 and 200 kg/ha) and in another experiment, three soil moisture regimes (0·3, 0·6 and 0·9 IW: CPE ratios), two rates of nitrogen application (100 and 200 kg/ha) and modified urea materials [prilled urea (PU) and dicyandiamide coated urea (DCDCU)] on oil content, herbage, oil yield and quality of geranium grown on altisols. Soil moisture maintained at 0·6 IW:CPE ratio significantly increased the herbage and oil yields of geranium. Application of 200 kg N/ha gave the maximum herbage and oil yield compared with those obtained from 0 and 100 kg N/ha. DCDCU produced higher yield than PU. The concentration and quality of essential oil were not influenced either by soil-moisture regime, rates or carriers of N.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 133 , Issue 2 , September 1999 , pp. 203 - 207
Copyright
© 1999 Cambridge University Press

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