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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 3
First page : (49) Last page : (54)
Article doi: : http://dx.doi.org/10.18782/2320-7051.6225

Effect of Planting Geometry and Fertilizer Levels on Yield Parameters and Economics of Aerobic Rice under Drip Fertigation

T. M. Ranjith Kumar*, N. Krishnamurthy, Nagaraju, Manjanagouda S. Sannagoudar and Prashant
Department of Agronomy, College of Agriculture, UAS, GKVK, Bengaluru – 560065
*Corresponding Author E-mail: ranjithtm942@gmail.com
Received: 5.02.2018  |  Revised: 14.03.2018   |  Accepted: 19.03.2018  

 ABSTRACT

Studies on effect of planting geometry and fertilizer levels on yield parameters and economics of aerobic rice under drip fertigation was conducted during Kharif 2014 at ZARS, UAS, GKVK, Bengaluru. Experiment was laid out in a factorial concept of randomized complete block design with 13 treatments which are replicated thrice. The treatments constitutes 50 per cent of  RDF through Drip fertigation (F1), 75 per cent of RDF through Drip fertigation (F2), 100per cent of RDF through Drip fertigation (F3) and four planting geometry 25 cm x 10 cm, 25 cm x 15 cm, 25 cm x 20 cm and 25 cm x 25 cm, with a control i.e., planting geometry of 25 cm X 25 cm with surface irrigation and soil application of RDF. The results revealed that, 100 per cent RDF through drip fertigation has recorded significantly higher productive tillers (601.73 m-2), grain (6115kg ha-1) and straw yield (8792 kg ha-1). Planting geometry of 25 cm x 15 cm recorded significantly higher productive tillers (516.61 m-2), grain (5954 kg ha-1) and straw yield (8297 kg ha-1). Interaction of planting geometry of 25 cm x 15 cm with 100 per cent RDF through drip fertigation has recorded significantly higher productive tillers (719.47 m-2), grain (6762 kg ha-1) and straw yield (9186 kg ha-1). The planting geometry of 25 cm x 15 cm with 100 per cent RDF through drip fertigation recorded higher gross, net returns and B: C ratio (₹121977, ₹75814 ha-1 and 2.64, respectively).

Key words: Planting geometry, Fertigation, Drip, Aerobic rice

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Ranjith Kumar, T.M., Krishnamurthy, N., Nagaraju, Sannagoudar, M.S. and Prashant, Effect of Planting Geometry and Fertilizer Levels on Yield Parameters and Economics of Aerobic Rice under Drip Fertigation, Int. J. Pure App. Biosci.6(3): 49-54 (2018). doi: http://dx.doi.org/10.18782/2320-7051.6225