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Indian Journal of Agricultural Research, volume 41 issue 2 (june 2007) : 117 - 121

FERTILIZER MISAPPLICATION AND ECONOMIC ASSESSMENT OF SOIL FERTILITY DEGRADATION-A CASE STUDY IN NALATHWAD WATERSHED, KARNATAKA

L.G.K. Naidu, S.C. Ramesh kumar, B.A. Dhanorkar, Bhoora Prasad, C.R.Shiva Prasad, S.L. Budihal, S. Srinivas, Arti Koyal, R.S. Reddy, C.S. Harindranath, P. Krishnan

Affiliations

¹National Bureau of Soil Survey and Land Use Planning, Regional Centre, Bangalore, Hebbal, Bangalore - 560 024, India

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Cite article:- Naidu L.G.K., kumar Ramesh S.C., Dhanorkar B.A., Prasad Bhoora, Prasad C.R.Shiva, Budihal S.L., Srinivas S., Koyal Arti, Reddy R.S., Harindranath C.S., Krishnan P. (2025). FERTILIZER MISAPPLICATION AND ECONOMIC ASSESSMENT OF SOIL FERTILITY DEGRADATION-A CASE STUDY IN NALATHWAD WATERSHED, KARNATAKA. Indian Journal of Agricultural Research. 41(2): 117 - 121. doi: .

ABSTRACT

Misapplication of fertilizer inputs has been found in practice both in general recommendations and farmers local practices. Fertilizer application as per general recommendations in general showed surplus addition of NPK nutrients than the required whereas nutrient misapplication on farmers fields varied with crop as well as category of farmers. In sorghum crop under farmer’s level of management both N and P nutrients were used in excess, while in case of wheat and sunflower, the same nutrients (N and P) were applied in less than the required. With respect to K use, there was minimal or no use by farmers leading to large scale mining of soil K continuously in all the crops studied. The total misapplication (NPK) of nutrients in Nalathwad watershed (560 ha) as a whole was estimated to be 14.91 tons nitrogen, 2.68 tons phosphorus and 11.77 tons K, in terms of economic value it amounts to Rs. 292714.

KEYWORDS

REFERENCES

AIS and LUS (1970). Soil Survey Manual. All India Soil and Land Use Survey, IARI, New Delhi.
Hegde, D.M. and Sudhakar Babu, S.N. (2001). Fertil News, 46(7): 55-75.
Katyal, J.C. (2001). J. Indian Soc. Soil Sci., 49: 570-592.
Ramesh Kumar et al. (2002). NBSS and LUP Technical Report No. 582, Volume I (Summary Report), Nagpur.
Subba Rao, A. and Sanjay Srivastava (2001). In: Proc. National Seminar, AICRP STCRC, Indian Institute of Soil Science, Bhopal, pp. 155-159. Vol. 41, No. 2, 2007 121

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FERTILIZER MISAPPLICATION AND ECONOMIC ASSESSMENT OF SOIL FERTILITY DEGRADATION-A CASE STUDY IN NALATHWAD WATERSHED, KARNATAKA

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