~ 757 ~ Journal of Pharmacognosy and Phytochemistry 2020; 9(5): 757-760 E-ISSN: 2278-4136 P-ISSN: 2349-8234 www.phytojournal.com JPP 2020; 9(5): 757-760 Received: 13-07-2020 Accepted: 16-08-2020 Anurag Singh Department of Horticulture, Sam Higginbottom University of Agriculture Technology and Sciences, Prayagraj, Uttar Pradesh, India R Srivastva Department of Horticulture, Sam Higginbottom University of Agriculture Technology and Sciences, Prayagraj, Uttar Pradesh, India VM Prasad Department of Horticulture, Sam Higginbottom University of Agriculture Technology and Sciences, Prayagraj, Uttar Pradesh, India Nikhil Vikram Singh Department of Horticulture, Sam Higginbottom University of Agriculture Technology and Sciences, Prayagraj, Uttar Pradesh, India Corresponding Author: Anurag Singh Department of Horticulture, Sam Higginbottom University of Agriculture Technology and Sciences, Prayagraj, Uttar Pradesh, India Effect of bio-fertilizers and inorganic manures on growth, yield and quality of okra ( Abelmoschus esculentus L. Moench) under Prayagraj Agro- climatic condition Anurag Singh, R Srivastva, VM Prasad and Nikhil Vikram Singh Abstract A field experiment was carried out to assess the “Effect of bio-fertilizers and inorganic manures on growth, yield and quality of Okra (Abelmoschus esculentus L. Moench) under Prayagraj Agro-climatic condition”. during kharif season, 2015 at Vegetable Research Field, Department of Horticulture, Sam Higginbottom University of Agriculture Technology and Sciences, Prayagraj (U.P.). Different levels and combination of bio-fertilizers and inorganic manures was applied to assess the vegetative growth, yield and quality characteristics of Okra cv. Kashi Pragati (VRO-6). The experiment was laid out in factorial randomized block design (FRBD) with sixteen treatments and three replications. Regarding the different parameters of growth, yield and quality; the treatment T12 (Azotobactor+PSB+NPK@100:50:50) differ significantly. viz. Higher number of nodes (27.60), diameter of stem (2.08cm), days taken to first flower appearance (38.07), Days taken to 50 % flowering (53.67), diameter of fresh fruit (1.44cm), average fruit length (14.13cm), average fruit weight (12.80g), number of fruit per plant (22.33), fruit yield per plant (285.87g), total yield of fruits (179.99 q/h), total seed yield per plant (24.2g), ascorbic acid (19.30mg/100g), TSS (14.97 0 Brix), incidence of Y.V.M.V. (0.90%) and BC ratio except plant height (169.23cm) and number of leafs (33.90) which were observed the maximum in the treatment T16 (Azotobactor+PSB+NPK@120:60:60). Keywords: Azotobactor, PSB, okra, nitrogen, phosphorus and potash Introduction Okra botanically known as Abelmoschus esculentus (L. Moench) having chromosome number 2n=130 belongs to the family of Malvaceae. Okra is one of the economically important vegetable crops grown as a garden crop as well as on large commercial farms in tropical and sub-tropical parts of the world. Its tender green fruits are generally marketed in the fresh stage, however sometimes, it is canned or dehydrated forms Tyagi et al. (2016) [35] . In present time the harmful effects of chemical fertilizers is a major problem. So the Integrated nutrient management is best way to obtain quantity and quality yield in okra and other crops. Therefore, a judicious combination strategy of using inorganic fertilizers as well as bio- fertilizers may be helpful in increasing okra production. Organic fertilizer, now a day’s plays a vital role in improving the fruit quality, beneficial effects of Azotobactor and PSB in crop production are well established more interestingly (Presekhar and Rajashree 2009) [25] . It was found that joint inoculation of above bio-fertilizers can cause synergistic effect Sajid et al. (2012) [30] ; Prabhakaran and Pitachai (2002) [23] . Zero adverse impact on agro-ecosystem quality by balanced fertilization of organic manure, Inorganic fertilizers and bio-inoculants. The INM enhances the availability applied as well as native soil nutrients, improves and sustains the physical and biological function of soil. Materials and Methods The experiment was carried out at the Vegetable Research Farm, Department of Horticulture, Prayagraj School of Agriculture, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj (Uttar Pradesh) during Kharif season of 2015. The soil of the experimental field was sandy loam in texture, poor in nitrogen, comparatively rich in phosphorus and medium in potash with slightly alkaline reaction. A basal dose of N, P and K along with Azotobactor and PSB culture were applied behalf of treatment. One third nitrogen and entire quantity of P and K was applied prior to sowing. Remaining dose of nitrogen was applied in two splits i.e. 20 and 60 days after sowing. The experiment was laid out in factorial randomized block design (FRBD) with sixteen treatments and three replications.