Integrated nutrient management in FCV tobacco (Nicotiana tabacum) in irrigated Alfisols
DOI:
https://doi.org/10.59797/ija.v54i1.4770Keywords:
Leaf quality, Nicotiana tabacum, Organic nitrogen compounds, Productivity, Soil fertilityAbstract
Field experiment conducted between rabi 2002-03 and 2003-04 at CTRI Research Station, Jeelugumilli, with different sources and levels of organic manures in comparison to chemical fertilizers and integrated application of sunnhemp, [ Crotalar ia juncea (L.) Rotar and Joy] in-situ green manuring + 110-26.2-99.9 kg of N, P and K/ha (INM) revealed that the highest mean yields of green leaf and cured leaf of FCV tobacco ( Nicotiana tabacum L.) were recorded with INM (20.84 and 2.51 t/ha) followed by groundnut ( Arachis hypogaea L.) cake (GNC) 6.0 t/ha (19.93 and 2.38 t/ha), filter press cake (FPC) 100 t/ha (19.63 and 2.29 t/ha) and farmyard manure FPC 100 t/ha (19.01 and 2.25 t/ha), respectively. The increase in mean cured leaf yield of INM, groundnut cake 6.0 t/ha, FPC 100 t/ha, farmyard manure 100 t/ha, farmyard manure 50 t + FPC 50 t/ha and fertilizers alone was 122, 111, 103, 98, 99 and 81% and that of grade index was 153, 174, 162, 157, 151 and 97%, respectively compared with con- trol, no fertilizer. Mean grade index/ cured leaf percentage, reducing sugar content and sugar: nicotine ratio were higher with application of organic manures as compared to chemical fertilizers alone and INM. The increase in sta- tus of available soil N with INM, groundnut cake 6.0 t/ha, filter press cake 100 t/ha, farmyard manure 100 t/ha, farmyard manure 50 t + FPC 50 t/ha and fertilizers alone was 9.8, 13.1, 15.8, 15.0, 13.7 and 6.8% and that of available P was 27.6, 19.9, 28.0, 27.6, 23.4 and 15.3%, respectively compared with control no fertilizer. The high- est net returns of Rs 52,480/ha and B: C ratio of 1.67 accrued with INM. The unit cost of tobacco production with organics is higher than that raised with chemical fertilizers, as the cost of organic inputs is prohibitively higher than chemicals. With the current marketing scenario, organic tobacco production is not cost-effective as there is no price differential for conventional and organic tobaccos. Until such time a premium market system develops for or- ganically grown FCV tobacco, current system of tobacco grown with INM seems to be inevitable and can offer divi- dends and looks to be remunerative and viable on a long run.References
Chakarborti, Mandira and Singh, N.P. 2004. Bio-compost: a novel input to the organic farming. Agrobios Newsletter 2(8): 14
Channa-Naik, D., Sheshadri, T., Vasuki, N., Vageesh, T.S. and Naik,
B.G. 2008. Yield and quality in FCV tobacco as influenced by nitrogen management in light soils of Karnataka. Mysore Journal of Agricultural Sciences 42(1):53-59.
Flower, K.C. 1999. Field practices. (In): Tobacco - Production, Chemistry and Technology. 77-82 pp. Davis, D.L. and Nielsen, M.T. (Eds). Blackwell Science Ltd. University Press, Cambridge, Great Britain.
Giridhar, K., Chandrasekhara Rao, C. and Ramakrishnan, S. 2003. Evaluation of organic manures and nitrogen levels for yield and quality and root-knot nematode management in FCV tobacco in Karnataka. Tobacco Research 29 (1):1-7.
Gopalachari, N.C. 1984. Tobacco, 96 pp. Indian Council of Agricul
tural Research, New Delhi.
Kasturi-Krishna, S., Krishna-Reddy S.V. and Reddy, P.R.S. 2004. Performance of flue cured Virginia tobacco (Nicotiana tabacum) - based cropping systems under irrigated Alfisols of Andhra Pradesh. Indian Journal of Agronomy 49 (3): 201
Krishna-Reddy, S.V., Kasturi-Krishna, S., Prasad Rao, J.A.V., Harishu Kumar, P. and Krishnamurty, V. 2007. Effect of application of biofertilisers to soybean (Glycine max) and nitrogen to tobacco (Nicotiana tabacum) in soybean - tobacco cropping system. Indian Journal of Agronomy 52 (4): 294
Kumaresan, M., Chandrasekhararao, C. and Athinarayanan, N. 2003. Effect of different organic manures on the growth attributes, yield, quality and economics of chewing tobacco in Tamil Nadu. Tobacco Research 29 (1): 31-34.
Singh, K.D., Narasimha Rao, C.V., Prabhu, S.R. and Subba Rao, R. 2002. Factors influencing TSNAs in Indian tobacco. 3 p. (Agronomy and Phytopathology). (In): Proceedings of CORESTA Congress, held at New Orleans, LA, USA from 22-27 September.
Surekha, K., Rao, K.V. and Sam, T.K. 2008. Improving productivity and nitrogen use efficiency through integrated nutrient management in irrigated rice (Oryza sativa). Indian Journal of Agricultural Sciences 78(2):173-176.
Tarafdar, J.C., Tripathi, K.P. and Mahesh Kumar. 2008. Organic Agriculture, 372 pp. Scientific Publishers, Jodhpur.
Tobacco Board, 2008. Annual Report, 2007-08. 143 and 154 pp. Tobacco Board, Government of India, Ministry of Commerce and Industry, Guntur, Andhra Pradesh.
