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CRITICAL SOIL TEST LEVELS FOR ALFISOLS OF NILGIRIS THROUGH YIELD TARGETING AND INTEGRATED PLANT NUTRITION SYSTEM FOR POTATO

Article Id: ARCC4557 | Page : 147 - 148
Citation :- CRITICAL SOIL TEST LEVELS FOR ALFISOLS OF NILGIRIS THROUGH YIELD TARGETING AND INTEGRATED PLANT NUTRITION SYSTEM FOR POTATO.Agricultural Science Digest.2006.(26):147 - 148
A. Gayathri, A. Vadivel, R. Santhi* and P. Murugesa Boopathi
Address : Department of Soil Science and Agricultural Chemistry, Tamil Nadu Agricultural University, Coimbatore - 641 003, India

Abstract

Critical soil test values for desired yield targets of 400, 450 and 500q ha−1 were computed from the fertilizer prescription equations of potato in Ultic Hapludalf of Nilgiris. The critical soil test values for all the three major nutrients were low under IPNS treatments (NPK plus FYM, NPK plus Azospirillum) as compared to NPK alone, which in turn resulted in reduction of NPK fertilizer application for the same levels of yield targets.

References

  1. Ramamoorthy, B. et al. (1967). Indian Fmg., 17: 43-45.
  2. Randhawa, N.S and Velayutham, M. (1982). Fertil. News, 27: 35-64.
  3. Santhi, R. et al. (2003). Madras Agric. J., 90(7-9): 539-540.

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