Vol. 12, Issue 12 (2023)

Growth of crop may differ with fertilizer application time and farm yard manure levels practices. Hence a field experiment was conducted at Experimental farm, Department of Agronomy, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani (M.S.) during kharif 2021-2022 season to study the response of Bt cotton to time of fertilizer application and farm yard manure levels under rainfed condition. The experiment was laid out in split plot design with three replications. The present investigation consisted of sixteen treatment combinations. Treatments details consist of time of fertilizer application in main plot and in sub plot four levels of FYM. The treatments were allotted randomly in each replication. Result of study revealed that among different time of fertilizer application (T₁) application of basal dose at sowing, splitting of N as per recommendation resulted maximum AGR for plant height (cm day^-1 plant^-1) and dry matter (g day^-1 plant^-1). Among different levels of FYM application (M2) application of hill placement of 75% FYM at sowing resulted maximum AGR for plant height (cm day-1 plant^-1) and dry matter (g day^-1 plant^-1). Mean Crop Growth Rate (CGR), Relative Growth Rate (RGR) were also maximum with (T₁) application of basal dose at sowing, splitting of N as per recommendation and (M2) hill placement of 75% FYM at sowing.