Effect of various organic amendments on growth, yield and seed quality of Knol-khol(Brassica oleracea var. gongylodes)
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Date
2023-11-09
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Sher-e-Kashmir University of Agricultural Sciences & Technology of Jammu
Abstract
To find out the effect of different organic bulk and liquid manures on growth, yieldand seed quality of knol-khol, a field-experimentwas conducted at Centre for Organic and Natural Farming, Chatha during Rabi season of 2022-23. The experiment was conducted in Randomized Complete Block Design (factorial) consisting of 02 factors viz., bulkmanuresandorganic liquid manures.Therewere20treatmentcombinations,with three replications.During vegetative stage of the crop,liquid manures (Panchagavya,Jeevamrut, Compost tea) were applied at 20 and 30 days after transplantingand again after 20 days of replanting of the knobs for seed production. Liquid manureswere sprayed at 3 percent concentration whereasbulk manures wereapplied at various dosages likeFYM20tonnes per hectare, vermicompost3tonnes per hectare; poultry manure2 tonnes per hectare and mustard cake2 tonnes per hectare,asbasaldosetothecrop.Results depicted that during vegetative stage, foliar applications of Compost tea + FYM recorded significantly higher growth and yield contributing parameters as compared to other treatments. This treatment was statistically at par with the treatment having Jeevamrut +FYM for knob diameter (8.12 cm) and days to 50% marketable maturity (40 days). At reproductive stage of the crop, Jeevamrut+ FYMshowed superiority with respect to days to 50% flowering (91 days), number of siliqua per plant (945), siliqua weight per plant (75.67g), seed weight per plant (50g) and seed yield per hectare(610kg).Studies further revealed that organic amendments could not influence soil chemical properties like pH, EC,OC except available nitrogen. In case of pest and disease incidence,no major incidence was observed during the entire crop cycle.Hence, based on one year study, it can be concluded that Compost tea with FYM, recorded significantly higher growth and yield parameters whereas for seed production, Jeevamrutwith FYM,resulted in maximum seed contributing parameters in knol-khol.
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Kumari, N. 2023. Effect of various organic amendments on growth, yield and seed quality of Knol-Khol (Brassica oleracea var. gongylodes), M.Sc. Thesis, SKUAST-Jammu, India