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The field experiment was conducted at Crop Research Farm, Department of Agronomy, Naini Agriculture Institute, SHUATS, Prayagraj, UP, during the Zaid season of 2023. The experiment was laid out in Randomized Block Design with ten treatment combinations which are replicated thrice. The experiment involves with the biofertilizers like azospirillum(10g and 20g/kg seed),azotobacter(10g and 20g/kg seed) along with biochar(0t/ha,10t/ha,40t/ha). Among the various treatment combinations in (treatment-9) with the application of Azospirillum 10g/kg seed along with Azotobacter 10 g/kg seed and Biochar 40 t/ha significantly recorded higher plant height (117.13 cm), plant dry weight (34.33 g), cobs/plant (1.87), cob length without husk (14.58 cm), cob weight without husk (12.09 g) and cob yield without husk (4.70 t/ha). Maximum gross returns (2,35,000.00 ₹/ha), were obtained in (treatment-9) whereas maximum net returns (1,27,001.00 ₹/ha) and higher benefit cost ratio (1.74) was obtained in (treatment-8) with application of Azospirillum 10g/kg seed along with Azotobacter 10g/kg seed and Biochar 10 t/ha.
Maheswar et al. (Mon,) studied this question.