Effect of Different Sources and Levels of Nitrogen on Physicochemical Characteristics of Papaya Cv. Coorg Honey Dew under U.P. Sub-tropic Conditions

The present experiment was carried out at Sam Higginbottom Institute of Agricutlure, Technology and Sciences, Deemed University, Allahabad, U.P to study the effect of different sources and levels of nitrogen on physico-chemical characteristics of papaya cv. COORG HONEY DEW. The experiment was laid out in a Randomized Block Design with seven treatments consisting of nitrogen (T₁=150g, T₂=250g and T₃=350g per plant per year as urea), nitrogen (T₄=150g, T₅= 250g and T₆= 350g per plant per year as ammonium sulphate) and T₀=control (no application of fertilizers), each treatment was replicated four times. The maximum length of fruits (26.57 cm), width of fruits (47.65 cm), specific gravity (0.88) was noted under treatment T₂ followed by treatment T₆. The maximum total soluble solids (13.5 %) were noted under the treatment T₄ followed by treatment T₅ and treatment T₁. The total sugar (12.5%) and titrable acidity (0.15%) was recorded maximum with the treatment T₁ followed by treatment T₄. The maximum ascorbic acid content (50mg/100g) was noted under treatment T1 followed by treatment T₆. The maximum pH (5.6) of papaya fruit juice was recorded under treatment T₁ followed by treatment T0.