Impact of organic nutrient modules on productivity of pigeonpea based intercropping system

The field experiment was conducted during Kharif season of 2018-19 at research farm of Department of Agronomy, Dr. Panjabrao Deshmukh Krishi Vidhyapeeth, Akola (Vidarbha, Maharashtra) to evaluate the impact of organic nutrient modules on productivity of pigeonpea based intercropping system. The experiment was laid out in strip plot design (SrPD) with four main plot factors (intercropping system) and three sub plot factors (organic integrated nutrient management) and replicated thrice. The treatment consists of T1 - sole pigeonpea, T2 - pigeonpea + soybean (1:4), T3 - pigeonpea + foxtail millet (1:4) and T4 - pigeonpea + cotton (1:4) and three organic integrated nutrient management (OINM) viz., N1 - 100% FYM (Farm Yard Manure) + vermicompost, N2 - 75% FYM + vermicompost + 25% neem cake and N3 - control (No manure). Among the intercropping systems, pigeonpea + soybean (1:4) recorded significantly higher seed yield (1043.6 kg ha-1), stalk yield (3241.7 kg ha-1) and biological yield (4687.4 kg ha-1) of pigeonpea than all other intercropping systems. Pigeonpea equivalent yield (PEY) (2123.4 kg ha-1) and system productivity (11.8 kg ha-1 day-1) was also found highest in pigeonpea + soybean (1:4) intercropping systems. Regarding the organic nutrient management practices, significantly the highest seed yield (922.2 kg ha-1), stalk yield (2730.3 kg ha-1), biological yield (3652.5 kg ha-1), pigeonpea equivalent yield (1610.8 kg ha-1) and system productivity (8.9 kg ha-1 day-1) were found in 75% FYM + vermicompost + 25% neem cake. Regarding the interaction, pigeonpea + soybean (1:4) intercropping system with 75% FYM + vermicompost + 25% neem cake had registered the highest seed yield (1228.0 kg ha-1) and PEY (2644.6 kg ha-1).