Background: Sweet corn is a selectively crossbred variant of maize designed with the intention of enhancing its sugar content. It highly remunerative and is gaining momentum among the progressive farmers due to its extra sweetness, early maturity, nutritious green fodder at harvest which earns high market value. 
 
Methods: Field experiments were undertaken during kharif season of 2021 and 2022 at Experimental Research Farm, Department of Agronomy, SAS, Nagaland University to access tillage and seaweed extract effects on soil physio-chemical properties, microbial population and yield of sweet corn. 
 
Result: The results from study revealed that yield parameters such as green cob yield, green fodder yield showed significant increase under conventional tillage and application of 10% S-SWE. Highest microbial population was exhibited under zero tilled plots, Sargassum seaweed extract (15% S-SWE) application noted significantly higher bacterial, actinomycetes and total microbial population.

Tillage and Seaweed Extract Effects on Soil Physio-chemical Properties, Microbial Population and Yield of Sweet Corn (Zea mays saccharata L.) in Hills of Nagaland