Vol. 12, Issue 9 (2023)

Author(s):
DVS Akshay, ND Parlawar, JP Deshmukh and AS Riar

Abstract:
A field investigation was conducted to compare cotton (Gossypium hirsutum) growth and yield attributes under organic, bio-dynamic, Bt-conventional, and non-Bt conventional management systems during the kharif season of 2020–21 at the bio Re-FiBL research trails farm, run by the bioRe Association in Kasrawad, Khurgone, Madhya Pradesh. Five distinct crop management techniques were used in the field experiment, each replicated four times, and the study was set up using a randomized block design. The treatments were distributed at random to different plots. The five approaches are: organic cotton management, biodynamic cotton management, conventional non-Bt cotton management, conventional Bt cotton management, and absolute control (without fertilizers). Regarding the emergence (%) and final plant population, it was determined that none of the treatments were statistically significant. The treatment with conventional Bt had the highest plant height and plant dry matter per hectare whereas the control had the lowest. The Conventional Bt treatment had the greatest observed open and closed boll count at the time of first and second picking, whereas the Control treatment had the lowest. Additionally, it was discovered that treatments with conventional Bt and control had the highest and lowest seed cotton yields per plant and per hectare, respectively. From the experiment, it can be inferred that the Conventional management of Bt cotton had considerably higher maximum growth and yield characteristics than the others.