Effect of different types of vermicompost and nitrogen levels on yield of sweet corn (Zea mays L. saccharata)

Abstract

A field experiment entitled “Effect of Different Types of Vermicompost and Nitrogen Levels on Yield of Sweet Corn (Zea mays L. saccharata)” was conducted during the summer season of 2025 at the Agronomy Farm, College of Agriculture, Pune. Results showed significant improvement in yield attributes with integrated nutrient management. The treatment T₁ (50% RDN through RDF + 50% tree litter vermicompost) produced the longest cobs (23.53 cm), highest girth (19.68 cm), maximum cob weight and the highest cob (250.67 q ha⁻¹) and stover yields (373.37 q ha⁻¹), performing comparably with RDF + vermicompost (T₁₀). The enhanced performance was attributed to sustained nutrient release and improved soil health. Overall, integrating 50% RDF with 50% tree litter vermicompost proved the most effective, confirming that partial substitution of chemical fertilizers with vermicompost can significantly enhance sweet corn productivity.