Vol. 7, Issue 11, Part D (2025)

A field experiment was conducted at the AICRP on Integrated Farming System, Mahatma Phule Krishi Vidyapeeth (MPKV), Rahuri, during summer 2024-25, to assess the influence of foliar application of distinct potassium sources and concentrations on growth and yield parameters of summer green gram (Vigna radiata L.) cv. Phule Suvarna. The experimental site featured semi-arid tropical conditions and alkaline, potassium-rich soils. The study adopted a randomized block design with eight treatments and Three Replication, integrating both soil and foliar potassium application (sources: MOP, SOP, and Schoenite). Results revealed that foliar application of potassium particularly Schoenite at 2% concentration significantly enhanced plant height (58.92cm), branch (11.22Plant^-1) and leaf count (35.73 Plant^-1),) leaf area (25.67dm^-2), and dry matter accumulation (30.09g) over the control and at par with treatment T⁶ and T⁴. Yield attributes such as number of pods (23.86plant^-1), seeds (12.26pod^-1), seed yield (13.76gplant^-1), straw yield (16.33gplant^-1), and seed index (3.58g) also recorded the highest values under this treatment. These improvements underscore the synergistic benefits of multi-nutrient potassium sources and support the integration of foliar potassium sprays with conventional fertilization for maximizing green gram productivity in semi-arid, potassium-rich soils.