STANDARDIZATION OF SEED RHIZOME WEIGHT AND NUTRITION LEVELS FOR MANGO GINGER (Curcuma amada Roxb.) UNDER ARECANUT GARDEN
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Date
2018-08-11
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University of Agricultural & Horticultural Sciences, Shivamogga, (COH, MUDIGERE)
Abstract
A field study was conducted to standardize the seed rhizome weight and nutrition levels for mango ginger (Curcuma amada Roxb.) under arecanut garden at College of Horticulture, Mudigere, during 2017-18. The experiment was laid out in a Randomized Block Design with two factors. Factor one being seed rhizome weight (W1-20 g, W2-40 g, W3-60 g) and factor two was nutrition (N1- Control, N2- 60:50:100 kg, N3-90:75:150 kg, N4-120:100:200 kg, N5-150:125:250 kg and N6-180:150:300 kg NPK/ha). Significant differences were recorded for all the parameters under study. Seed rhizomes weighing 60g recorded maximum sprouting, plant height, number of leaves, number of tillers per plant, leaf area, leaf area index, length and width of the rhizomes, primary and secondary rhizomes per clump, fresh and dry weight of rhizomes, yield per plot, yield per hectare and essential oil content in rhizomes. Among the nutrient levels, application of 180:150:300 kg NPK/ha recorded higher values for all the above growth, yield and quality parameters. Interaction effect of seed rhizome weights and nutrition levels were also found significant for the traits under study. The treatment W3N6 (seed rhizome weighing 60 g and nutrition level 180:150:300 kg NPK/ha) recorded maximum sprouting (96.33 %), higher plant height (58.20 cm), number of leaves (13.70), number of tillers per plant (3.64), leaf area (42.30 dm2), leaf area index (4.98), length (17.26 cm) and width (16.10 cm) of the rhizome, primary (7.96) and secondary (16.43) rhizomes per clump, fresh (358.93 g) and dry (86 g) weight of the rhizome, dry recovery (24.02 %), yield per plot (10.75 kg), yield per hectare (35.86 t/ha) and essential oil content (0.78 %). The economics of cultivation was worked out and the treatment combination W1N6 recorded highest B:C ratio (2.11).
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