Indian Journal of Agricultural Research

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Indian Journal of Agricultural Research, volume 42 issue 4 (december 2008) : 303-306

YIELD, RESPONSE AND NUTRIENT UPTAKE BY POTATO AS INFLUENCED BY SOIL FERTILITY AND INTEGRATED PLANT NUTRITION SYSTEM ON ULTISOLS

A. Gayathri, A. Vadivel, R. Santhi*, P. Murugesa Boopathi
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. (2024). YIELD, RESPONSE AND NUTRIENT UPTAKE BY POTATO AS INFLUENCED BY SOIL FERTILITY AND INTEGRATED PLANT NUTRITION SYSTEM ON ULTISOLS. Indian Journal of Agricultural Research. 42(4): 303-306. doi: .

ABSTRACT

Following the inductive cum targeted yield concept, a field experiment was conducted during
2002-03 to study the effect of soil fertility and Integrated Plant Nutrition System (IPNS) on the yield
of potato (var. Kufri Thenmalai) in Typic Haplohumult soils of Tamil Nadu. The treatments consisted
of five levels of N, four levels of P2O5, three levels of K2O, two levels of FYM and two levels of
Azospirillum (Azo). Marked fertility build up due to fertilizer addition at graded levels was recorded
to the tune of 18.5, 103.3 and 8.2 per cent, respectively for KMnO4-N, Bray-P and NH4OAC-K in
N2P2K2 (strip IV) over N0P0K0 (Strip I). Response to fertilizer nutrients was recorded in terms of yield
and total uptake. The highest tuber yield of 56.43 t ha-1 was recorded by the application of 225 kg N,
300 kg P2O5 and 300 kg K2O ha-1 along with the application of FYM @15 t ha-1 and Azospirillum @
2 kg ha-1. Application of 300 kg N, 200 kg P2O5 and 300 kg K2O ha-1 has recorded 336.99, 147.95 and
300.24 kg ha-1 of total N, P and K uptake respectively.

KEYWORDS

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