The field experiment was conducted to study the “Effect of levels of FYM, fertilizers and biofertilizers on growth attributes of onion (Allium cepa L.) cv. N-53” in loamy sand soils of the Horticulture farm, . College of Agriculture, Bikaner during rabi 2015-16 and 2016-17. The experiment comprising of 27 treatment combinations and replicated three times, was laid out in RBD with three fertility levels (0, 50 and 100% of recommended dose of NPK), three treatments of organic manure (control, FYM @ 20 t ha-1 and FYM @ 10 t ha-1 ) and three bio-fertilizers (No inoculation, PSB inoculation and Azospirillum inoculation) were applied in the plots. | Effect of levels of inorganic fertilizers, organic manure and biofertilizers on plant growth attributes of onion (Allium cepa L.) cv. N-53 under Hot Arid Region of Western Rajasthan, India