Author(s):

Yamuna BG and Dinesh Kumar M

Abstract: Field experiments were conducted on sandy loam soils in the field unit of Agronomy division, College of Agriculture, Shivamogga, Karnataka, India during Kharif season of 2015 and 2016. In this field trial, the effect of levels and methods of fertilizer application (surface and fertigation) with combination of water soluble fertilizers and normal fertilizers or alone on growth and yield of aerobic rice was studies. The experiment was laid out in a Randomized Complete Block Design (RCBD) comprising of 3 replications and 12 treatments. Results showed that aerobic rice yields differed significantly among the treatments. Conjunctive application of 25% RDF through soil application + 100% RDF through fertigation recorded higher growth and yield parameters viz., productive tillers (22 plant^-1), panicle length (23.77 cm), total grains (117), filled grains (110.6) total dry matter accumulation (109.19 g plant^-1), grain (68.92 q ha^-1) and straw yield (79.45 q ha^-1); but it was statically on par with plots of 125 or 100% RDF through fertigation alone and conjunctive application of 25% RDF through soil application + 75% or 100% RDF through fertigation compared to soil applied 100% RDF through surface irrigation treatment (43.12 and 50.15 q ha^-1 respectively for grain and straw). The yield increment was found 41-60 per cent over surface irrigation with soil application of 100 per cent RDF.

DOI: 10.22271/phyto.2020.v9.i4ac.12069

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