Response of Sweet Corn (Zea mays saccharata L.) to Varying Tillage Methods and Seaweed Bio-stimulant Application

Background: The study on the effect of sweet corn (Zea mays saccharata L.) to varying tillage methods and seaweed bio-stimulant application was carried out at the Experimental Research Farm, Department of Agronomy, SAS, Nagaland University, Medziphema, Nagaland during Kharif season of 2021-2022. Methods: The experiment was laid out in the split-plot design (SPD). The treatment consisted of three tillage practices (conventional tillage, minimum tillage and zero tillage) in the main-plots while sub-plots received two different types of seaweed-sap from species i.e. Kappaphycus alvarezii (K-Sap) and Sargassum wightii (S-Sap) with three concentrations (5, 10 and 15%) used for seed treatment followed by foliar spray at three different stages of crop growth. Result: Analysis of variance revealed significant differences among the tillage practices and concentration and species of seaweed sap for maximum traits under studied. Growth attributes, yield attributes and yield was found to be significantly higher in CT as compared to MT and ZT at all crop stages. Similarly application of S-Sap upto 10% concentration resulted in significantly higher values as over K-Sap.