C. Muruganandam, M. Madhan and S. Venkatesan
Abstract
An experiment on the effect of integrated nutrient management on the rhizome productivity of mango ginger (Curcuma amada Roxb.) was conducted at a farmerâs field in Vadapalani village, Erode district, from July 2022 to January 2023. The experiment consisted of eleven treatments, each replicated three times. The application of vermicompost @ 5 t ha-¹ + chitosan @ 0.1%, along with 75% RDF, recorded the highest results in several parameters: the maximum weight of mother rhizome per clump (99.31 g), the number of primary rhizomes per clump (14.27), the weight of primary rhizomes per clump (146.98 g), the number of secondary rhizomes per clump (20.35), the weight of secondary rhizomes per clump (66.36 g), fresh rhizome yield per plant (312.65 g), and an estimated fresh rhizome yield of 25.15 t ha-¹. These results were observed in treatment T9, which involved the application of vermicompost @ 5 t ha-¹ + chitosan @ 0.1%, along with 75% RDF, followed by treatment T5.