DISTRIBUTION OF DIFFERENT FORMS OF NITROGEN IN BRACKISHWATER FISH-POND SOILS OF WEST BENGAL
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Authors
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G N Chattopadhyay
Centred Inland Fisheries Research Institute, Barrackpore, West Bengal
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L N Mandal
B. C. Krishi Viswa Vidyalaya, Mohanpur, West Bengal.
Abstract
Total nitrogen content of the soils from sixteen brackishwater ponds rangedfrom 220 to 420 ppm with an aveirage vclue of 330 ppm which was much less
than what is generally found in freshwater pond soils. Available nitrogen level
was also rather low ranging from 50.4 to 110.6 ppm with an averags value of
89.9 ppm. NH4+form of nitrogen occurred in higher amount than the 'NO3- form
with average values of 16.8 and 8.9 ppm respectively. C:'N ratios of the soils
ranged from 10.0 to 14.1 with an averagfc valu; of 12.5. The results emphas'zed
the need of application of nitrogen through fertilizers or manures for increasing
their productivity.
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The copyright of the articles published in Indian Journal of Fisheries vests with the Indian Council of Agricultural Research, who has the right to enter into any agreement with any organization in India or abroad engaged in reprography, photocopying, storage and dissemination of information contained in these journals. The Council has no objection in using the material, provided the information is being utilized for academic purpose but not for commercial use. Due credit line should be given to the ICAR where information will be utilized.How to Cite
Chattopadhyay, G. N., & Mandal, L. N. (2011). DISTRIBUTION OF DIFFERENT FORMS OF NITROGEN IN BRACKISHWATER FISH-POND SOILS OF WEST BENGAL. Indian Journal of Fisheries, 27(1 & 2), 140-144. https://epubs.icar.org.in/index.php/IJF/article/view/11988
