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

A. Gayathri; A. Vadivel; R. Santhi*; P. Murugesa Boopathi

Agricultural Science Digest

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Agricultural Science Digest, volume 26 issue 2 (june 2006) : 147 - 148

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

A. Gayathri, A. Vadivel, R. Santhi*, P. Murugesa Boopathi

Affiliations

¹Department of Soil Science and Agricultural Chemistry, Tamil Nadu Agricultural University, Coimbatore - 641 003, India

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Cite article:- Gayathri A., Vadivel A., Santhi* R., Boopathi Murugesa P. (2025). CRITICAL SOIL TEST LEVELS FOR ALFISOLS OF NILGIRIS THROUGH YIELD TARGETING AND INTEGRATED PLANT NUTRITION SYSTEM FOR POTATO. Agricultural Science Digest. 26(2): 147 - 148. doi: .

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.

KEYWORDS

REFERENCES

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

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[
ramamoorthy_1967] 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.

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

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