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Influence of amounts and methods of potassium application on yield and quality of citronella Java (Cymbopogon winterianus)

Published online by Cambridge University Press:  27 March 2009

K. Singh ,
A. Chowdhury ,
K. Subrahmanyam ,
B. N. Chatterjee  and
D. V. Singh
K. Singh
Affiliation:
Central Institute of Medicinal and Aromatic Plants, Lucknow 226016, India
A. Chowdhury
Affiliation:
Central Institute of Medicinal and Aromatic Plants, Lucknow 226016, India
K. Subrahmanyam
Affiliation:
Central Institute of Medicinal and Aromatic Plants, Lucknow 226016, India
B. N. Chatterjee
Affiliation:
Central Institute of Medicinal and Aromatic Plants, Lucknow 226016, India
D. V. Singh
Affiliation:
Central Institute of Medicinal and Aromatic Plants, Lucknow 226016, India
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Summary

Field experiments were conducted during 1983–85 and 1984–86 on an entisol at Lucknow, India. Dry herbage, essential-oil yields and nutrient uptake increased significantly with the application of 83 kg K/ha. Considering the means from both experiments over a two-year cropping cycle, the application of 41·5 kg K/ha in four splits exceeded the zero K control by 6·8 t/ha (dry matter) and 233 kg/ha (oil), and exceeded a basal application of 83 kg/ha K by 2·8 t/ha (dry matter) and 109 kg/ha (oil). Amounts and methods of K application showed no effect on oil quality. Application of 41·5 kg K/ha in four splits, one after each harvest, is recommended to obtain maximum yields in this perennial grass.

Type
Crops and Soils
Information
The Journal of Agricultural Science , Volume 115 , Issue 2 , October 1990 , pp. 247 - 252
Copyright
Copyright © Cambridge University Press 1990

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References

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