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Author: Arabhanvi, Fakeerappa × End date: 2018 × Start date: 2017 × Type: Thesis × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    Agronomic Fortification With Zinc And Iron, Nutrient Management and Planting Geometry on Yield and Quality of Sweet Corn
    (University of Agricultural Science, Dharwad, 2017-06) Arabhanvi, Fakeerappa; Hulihalli, U.K.
    Two field experiments on agronomic fortification of sweet corn with zinc and iron and effect of planting geometry and fertilizer levels on growth and yield of sweet corn were conducted in split plot design replicated thrice at the Main Agricultural Research Station, University of Agricultural Sciences, Dharwad during kharif 2015 and 2016. Soil application of ZnSO4 and FeSO4 (10 kg each ha-1) fortified with vermicompost (250 kg ha-1) along with foliar application of ZnSO4 and FeSO4 (1.0 % each) at 20 and 40 DAS recorded significantly higher fresh cob yield with husk (324.9 q ha1), fresh fodder yield (632.5 q ha-1), fresh cob weight with husk (381.7 g cob-1), without husk (299.7 g cob-1), total dry matter (226.6 g plant-1), zinc and iron concentration in grain and fodder, net return (Rs. 2,67,646 ha-1) and benefit cost ratio (4.88), which was on par with soil application of ZnSO4 and FeSO4 (10 kg each ha-1) fortified with FYM (500 kg ha-1) along with foliar application of ZnSO4 and FeSO4 (1.0 % each) at 20 and 40 DAS. Significantly higher fresh cob yield with husk (321.4 q ha-1), fresh fodder yield (606.75 q ha-1), net return (Rs. 2,84,507 ha-1), benefit cost ratio (5.13) and quality parameters viz., reducing sugar (3.65 %) non-reducing sugar (5.91 %) and total soluble solids (14.55 %) were recorded with interaction of planting geometry of 60 cm × 15 cm along with higher fertilizer level (125:60:25 N:P2O5:K2O kg ha-1). Soil application of ZnSO4 and FeSO4 (10 kg each ha-1) fortified with vermicompost (250 kg ha-1) along with foliar application of ZnSO4 and FeSO4 (1.0 % each) at 20 and 40 DAS and planting geometry of 60 cm × 15 cm along with higher fertilizer level (125:60:25 N:P2O5:K2O kg ha-1) recorded higher yield and net return with better quality.