Studies on Planting Geometry and Nutrients in Hybrid Brinjal
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Date
2015-09
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University of Agricultural Science, Dharwad
Abstract
A field experiment was conducted to study the effect of planting geometry and fertilizer on growth, yield and quality of hybrid brinjal at Saidapur Farm, University of Agricultural Sciences, Dharwad during kharif, 2013. The experiment was laid out in randomized block design with 15 treatment combination consisting of five levels spacing and three levels of fertilizer.
The study on different spacing indicated that, the plants raised with 90 cm x 90 cm spacing recorded higher number of fruits per plant (81.28), average fruit weight (85.48 g), fruit diameter (6.01 cm), and marketable fruit yield (78.73t/ha), uptake of nutrient, improved quality parameters like TSS (4.97 0Brix) and ascorbic acid (12.95 mg/100 g), net returns and lower pest infestation to shoot (7.92 %) and fruit (8.23 %) as compared to other spacing. However, the plant height (86.49 cm) and leaf area index (1.348) were maximum with 75 cm x 60 cm spacing.
Among the different fertilizer levels, application of 187.5:150:75 kg NPK/ha recorded significantly higher number of fruits per plant (69.34), average fruit weight (72.48 g), marketable fruit yield (73.76 t/ha), nutrient uptake, net returns and improved quality parameters like TSS (4.550Brix) and ascorbic acid (12.55 mg/100 g) as compared to other fertilizer levels. However, application of 125:100:50 kg NPK/ha (F1) fertilizer level recorded significantly lesser pest infestation to shoots (9.04 %) and fruits (9.55 %).
Among the spacing and fertilizer interactions, plants raised with 90 cm x 90 cm spacing along with application of fertilizer 187.5:150:75 kg NPK/ha recorded significantly higher net returns (Rs.4,32,183) and B:C ratio (3.82) as compared to other treatment combination.
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