Author(s):

Vanitha K, D Rajakumar, M Joseph and M Gomathy

Abstract: Field experiment was conducted at Department of Agronomy, Agricultural College and Research Institute, Killikulam during kharif season (2019) to study the effect of silica nutrition on growth and yield of aerobic rice (Oryza sativa L.). The experiment was carried out in randomized block design (RBD) with thirteen treatments and replicated thrice. Various sources and levels of silica along with potassium were taken as treatments. Growth and yield attributes were significantly influenced by silica application over control. The maximum grain and straw yield were recorded in 100% K + Rice husk ash 4 tons/ha + SSB (T₉) (4212 and 4703 kg ha^-1). However, it was on par with 100% K + Rice husk ash 2 tons/ha + SSB (T₈). The lowest grain yield was recorded in absolute control (T₁₃).

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