Vol. 12, Issue 8 (2023)

A field experiment was conducted during Kharif season of 2016-17, 2017-18 and 2018-19 to find out the optimum spacing for growth, yield and to study economics of arborium cotton in clayey textured soil at Cotton Improvement Project, Mahatma Phule Krishi Vidyapeeth, Rahuri, (Maharashtra). The experiment was laid out in randomized block design with nine treatments viz., 45 x 15 cm², 45 x 30 cm², 45 x 45 cm², 60 x 15 cm², 60 x 30 cm², 60 x 45 cm², 90 x 15 cm², 90 x 30 cm² and 90 x 45 cm² in three replications. The pooled result of experiment indicated that the spacing 45 cm x 15 cm² observed significantly maximum plant height (120.74 cm) than other spacing’s. However it was at par with spacing 60 x 15 cm² (117.68 cm) at harvest. The spacing 90 x 15 cm² recorded significantly higher number of bolls plant^-1 (24.37) and average boll weight (4.60 g) than rest of spacing’s. Whereas, the spacing 45 x 15 cm² recorded significantly higher seed cotton yield (18.30 q ha^-1) than rest of all other spacing’s and also observed 24 % higher seed cotton yield than normal spacing of 45 x 30 cm². The spacing 45 cm x 15 cm² recorded highest gross monetary returns (Rs.93557 ha^-1), net monetary returns (Rs. 39297 ha^-1) and B:C ratio (1.71) than rest of spacing.