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References

Fertiliser Association of India. 2003/04. Fertiliser and agriculture statistics. New Delhi.

Motsara, M.R. 2002. Available nitrogen, phosphorus and potassium status of Indian soils as depicted by soil fertiliser maps. Fert. News, 47(8): 15–21.

Sehgal, J., Mandal, D.K., Mandal, C. & Vadivelu, S. 1992. Agro-ecological zones of India. Second Edition. Nagpur, India. Technical Bulletin, No..24. NBSS&LUP (ICAR). p. 130.

Sharma, S.K., Subba Rao, A.V.M. & Murari, K. 2004. Atlas of rice-wheat cropping system in Indo-Gangetic Plains of India. Modipuram, India. Bulletin No. 2004-I, PDCSR (ICAR), pp. 110.

Singh, M.V. 2001. Evaluation of current micronutrient stocks in different agro-ecological zones of India for sustainable crops production. Fert. News, 42(2): 25–42.


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