Yield and Yield Attributes of Sweet Corn as Influenced by Planting Geometry and Fertilizer Levels

Aim: Field experiment was conducted to study the productivity of sweet corn as influenced by planting geometry and fertilizer levels.

Study Design: Split-plot design with three replications and nine treatment combinations.

Place and Duration of Study: Plot number ‘125’ ‘E’ block, Main Agricultural Research Station, University of Agricultural Sciences, Dharwad, Karnataka (India) during 2015-16 and 2016-17.

Methodology: Treatments includes three planting geometry and three fertilizer levels were applied as per protocol.

Results: Individual yield parameters such as fresh cob weight with husk, without husk, cob girth and number of grains per row were significantly higher in wider planting geometry with higher fertilizer levels. But with respect to respect to fresh cob yield with husk and fresh fodder yield was recorded higher significantly in planting geometry of 60 cm x 15 cm along with higher fertilizer level (125:60:25 N:P2O5:K2O kg ha-1) which was on par with planting geometry of 45 cm x 20 cm along with higher fertilizer level (125:60:25 N:P2O5:K2O kg ha-1).

Conclusion: Planting geometry of 60 cm x 15 cm along with higher fertilizer level (125:60:25 N:P2O5:K2O kg ha-1) was found superior with respect to fresh cob yield with husk and fresh fodder yield, which was on par with planting geometry of 45 cm x 20 cm along with higher fertilizer level (125:60:25 N:P2O5:K2O kg ha-1).