Author(s):

Jolli RB, Nayak VH, Boranayaka MB and Latha HC

Abstract: The experiment was carried out in the field of Regional Agricultural Research Station, Vijayapur during kharif 2018 to evaluate the effect of foliar application of zinc, boron and iron on growth, seed yield and quality parameters of sweet corn (cv. Madhuri). The experiment was planned with eight treatments viz., T₁: Zinc 0.2%, T₂: Boron 0.1%, T₃: Iron 0.1%, T₄: Zinc 0.2% + Boron 0.1%, T₅: Zinc 0.2% + Iron 0.1%, T₆: Boron 0.1% + Iron 0.1%, T₇: Zinc 0.2% + Boron 0.1% + Iron 0.1%, T₈: Control (No treatment) during Kharif 2017 at MARS, University of Agricultural Sciences, Dharwad with three replications in RBD. The results revealed that, the foliar application of zinc 0.2% + boron 0.1% + iron 0.1% + RDF (100 kg N, 50 kg P₂O₅, 25 kg K₂O, 10 kg SO₄ and FYM 7.5 t ha-1 has recorded higher plant height (200.6 cm), cob weight (102.0 g), seeds per cob (590.7), 100 seed weight (12.03 g) and seed yield (31.79 q/ha) and seed quality traits like germination (99.30 %), seedling vigour index (4210) and seedling dry weight (2.50 g) as compared to other treatments. It was revealed from the present investigation that the application of RDF in combination with the foliar application of zinc @ 0.2%, boron @ 0.1% and iron @ 0.1% recorded significantly higher seed yield, fodder yield and shelling percentage followed by the foliar spray of zinc @ 0.2% and boron @ 0.1% as this treatment recorded higher seed yield, fodder yield and shelling percentage over other combinations of major and micronutrients application in sweet corn.

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