The experiment was conducted to study the effect of different potassium levels on mungbean under custard apple based agri-horti system at Agricultural Research Farm of Rajiv Gandhi South Campus, Barkachha, Mirzapur. The experiment was conducted in a complete randomized block design with seven treatments which were replicated thrice. These treatments were different doses of potassium, that is, 0 kg/ha (T1), 20 kg/ha (T2), 40 kg/ha (T3), 60 kg/ha (T4), 80 kg/ha (T5), 100 kg/ha (T6) and 120 kg/ha (T7). Potassium application is directly related to growth, plant biomass and yield in crops. Results showed that application of different potassium levels gave varying yield. Lowest yield (700 kg/ha) was obtained with the application of 0 kg/ha and highest yield (1096 kg/ha) was obtained with the application of 120 kg/ha potassium. It is concluded that the application of 80 kg/ha potassium gave highest Benefit/Cost ratio of mungbean and looks more remunerative in Vindhyan region.
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Pranav et al. (2014) studied this question.
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