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ThesisItem Open Access Effect of integrated nutrient management on growth, yield and quality of guava (Psidium guajava L.) cv. Hisar Safeda(CCS HAU, Hisar, 2023-07) Kuldeep Kumar; Manender SinghThe present investigation was carried out to study the “Effect of integrated nutrient management on growth, yield and quality of guava (Psidium guajava L.) cv. Hisar Safeda” in the Department of Horticulture, CCS Haryana Agricultural University, Hisar during 2022-23. The experiment comprised of twelve different treatments with three replications and were laid out in randomized block design (RBD) to assessed the effect of integrated nutrient management on growth, yield and quality of guava. The results revealed that all the integrated nutrient treatments at different doses had significantly influenced growth, yield, physical and quality parameters over absolute control. Among different treatments, for yield parameters, T7 (100 % NPK (RDF) + ZnSO4 (0.5 %) + B (0.2 %) + Fe (0.5 %) as foliar spray + bio-fertilizer) performed better in terms of number of fruit/plant (256.5), average fruit yield (42.45 kg/plant). Furthermore, physical parameters, T7 (100 % NPK (RDF) + ZnSO4 (0.5 %) + B (0.2 %) + Fe (0.5 %) as foliar spray + bio-fertilizer) was found better in terms of diameter of fruit (7.08 cm), length of fruit (6.99 cm), average seed weight (1.95 g), fruit volume (168.6 cc). Moreover, for quality parameters, T7 performed better in terms of TSS (12.98 oB), acidity (0.36 %), TSS/Acid ratio (36.06) and sugar content i.e. total sugar (7.74 %), reducing sugar (4.62 %) and non reducing sugar (3.12 %), pectin content (0.97 %), and ascorbic acid content (200 mg/100 g pulp). However, parameters i.e. specific gravity were observed non-significant means all the treatments at different doses were not significantly influenced this traits