S, CHAITRA G, et al. “Effect of Different Levels of Macro Nutrients (NPK) and Mulching on Growth, Quality and Yield of Chrysanthemum (Dendranthema Grandiflora) Cv. Marigold”. The Indian Journal of Agricultural Sciences, vol. 88, no. 6, June 2018, pp. 871-6, https://doi.org/10.56093/ijas.v88i6.80591.