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Varietal responses and quantitative contribution of nutrients to potato production

Published online by Cambridge University Press:  27 March 2009

R. C. Sharma  and
H. C. Sharma
R. C. Sharma
Affiliation:
Central Potato Research Institute, Shimla-171 001, India
H. C. Sharma
Affiliation:
Central Potato Research Institute, Shimla-171 001, India
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Summary

Field experiments, conducted on alluvial soil of Jalandhar during 1984–5 and 1985–6 with four rates of application each of N, P and K and four potato cultivars, Badshah, Bahar, Lalima and Jyoti, revealed significant responses to N and K. Badshah, Bahar and Lalima responded to 240 kg N/ha while Jyoti responded to 160 kg N/ha. Badshah did not respond to K. Bahar responded to 150 K/ha whereas both Jyoti and Lalima responded to 50 kg K/ha. Varietal responses to N were related to yield and crop duration while the responses to K were related to K composition of tubers. N showed inconsistent effect on percentage dry matter of tubers, but K decreased it. N increased concentration of N and P but decreased that of K.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 110 , Issue 2 , April 1988 , pp. 331 - 335
Copyright
Copyright © Cambridge University Press 1988

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