ECONOMIC FEASIBILITY OF INTEGRATED NUTRIENT MANAGEMENT IN CARNATION (DIANTHUS CARYOPHYLLUS L.) UNDER POLYHOUSE CONDITIONM. Harshavardhan, D. P. Kumar, A. M. Rajesh, H. A. Yathindra and Shivanand Hongal
An experiment was conducted to find out the effect of integrated nutrient management on growth and flowering of carnation [Dianthus caryophyllus L.] at Department of Horticulture, University of Agricultural Sciences, GKVK, Bengaluru. The experiment was conducted by applying different combinations of organic and inorganic nutrient sources. Under various treatment combinations, the flower quality and yield parameters viz., flower bud diameter (1.67 cm), stalk length (75.45 cm), yield per plant (22.19) and yield per m2 (634.27) were recorded highest in treatment T7 (75 per cent RD NP and 100 per cent K + Azospirillum brasilense + Bacillus megaterium + VAM + Vermicompost + Panchagavya + Jeevamrutha + Trichoderma harzianum) as compared to T1 (100 per cent RDF). Over all net returns (Rs 13,98,502 per 1000 m2) was found to be maximum in treatment T7 with a B: C ratio of 1:1.70 when compared to T1. Hence treatment T7 viz., 75 per cent recommended dose of nitrogen and phosphorus and 100 % potassium + Azospirillum brasilense + Bacillus megaterium + Glomus fasciculatum (VAM Fungi) + Trichoderma harzianum + vermicompost + panchagavya + jeevamrutha was best in improving flower quality and yield.
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