INFLUENCE OF INTEGRATED NUTRIENT MANAGEMENT PRACTICES WITH IN-SITU GREEN MANURING ON YIELD AND QUALITY OF POTATO (Solanum tuberosum L.)

D.S. PRABHUDEVA¹*, R. JAYARAMAIAH², M.N. THIMMEGOWDA³, M.S. SANNAGOUDAR⁴, NARAYAN HEBBAL^5
1Department of Agronomy, College of Agriculture, University of Agricultural Sciences, GKVK, Bangalore, 560065, Karnataka, India
²Department of Agronomy, College of Agriculture, Hassan, 573225, University of Agricultural Sciences, GKVK, Bangalore, 560065, Karnataka, India
³AICRP on Dryland Agriculture, University of Agricultural Sciences, GKVK, Bangalore, 560065, Karnataka, India
⁴Department of Agronomy, College of Agriculture, University of Agricultural Sciences, GKVK, Bangalore, 560065, Karnataka, India
⁵Department of Agronomy, College of Agriculture, University of Agricultural Sciences, GKVK, Bangalore, 560065, Karnataka, India
* Corresponding Author : prabhudev15@gmail.com

Received : 08-08-2018     Accepted : 12-10-2018     Published : 15-10-2018
Volume : 10     Issue : 19       Pages : 7297 - 7300
Int J Agr Sci 10.19 (2018):7297-7300

Keywords : INM, In-situ green manuring, RDF, tuber yield, quality
Conflict of Interest : None declared
Acknowledgements/Funding : Author thankful to University of Agricultural Sciences, GKVK, Bengaluru, 560 065, India
Author Contribution : All author equally contributed

A field experiment was conducted to assess the influence of integrated nutrient management practices with in-situ green manuring on growth and yield of potato at College of Agriculture, Hassan, UAS, Bangalore during Kharif 2013. The experiment was laid out in a factorial Randomized Complete Block Design (FRCBD) with three replications and twelve treatment combinations including 2 fertilizer levels (75 and 100% RDF), 3 compost levels (0, 12.5 and 25 t ha-1 compost) and in-situ green manuring with sunhemp and cowpea. The investigation revealed that among treatment combinations, 100% RDF + 25 t ha-1 compost + in-situ green manuring with cowpea recorded significantly higher tuber weight (207.1 g plant-1), number of tubers (7.2 plant-1) tuber yield (17.26 t ha-1), starch content (77.8%) and crude protein content (13.3%) at harvest. Application of 75% recommended dose of NPK with 12.5 t ha-1 compost and in-situ green manuring with cowpea recorded similar results but little less reduction in the tuber yield and also quality as well. So, it is feasible for the potato by saving 25% fertilizer and 50% compost.

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