Interactive Effect of NPK Fertilizers and Plant Densities on Growth and Yield of Pointed Gourd (Trichosanthes dioica Roxb.)

A field experiment consisting four levels of fertiliser and four levels plant densities in factorial RBD with three replications was conducted at at instructional farm of K.V.K, Ganjam-II, Berhampur, Odisha during 2017-18. Results revealed that different levels of fertiliser and plant densities significantly influenced growth and yield of pointed gourd. The results of present investigation indicated that application of 100 per cent recommended dose of NPK (F2) and medium plant density (S3) have maximum yield of pointed gourd. Interaction effect due to fertilizer combinations and plant densities on growth and yield parameters was found to be significant. Among the treatment combinations of N, P, K levels and plant densities, the treatment combination T11 (F3S2 : 125% RDF + low plant density (1.5m x 1.5m)) recorded maximum main vine length and number of branches per plant, however T8(F2S3 : 100% RDF + medium plant density(1.5m x 1.0m)) recorded maximum number of nodes per vine , maximum weight of edible fruit, and total fruit yield per hectare.

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