Chickpea (Cicer arietinum)-based intercropping systems in Rajasthan’s Hadoti region: Productivity and economic viability

A study was carried out during three successive winter (rabi) seasons (2018–19 to 2020–21) at the Agricultural Research Station in Ummedganj, Kota, Rajasthan to determine the productivity and economic viability of intercropping systems based on chickpea (Cicer arietinum L.) in the Hadoti region of Rajasthan. Nine various chickpeabased intercropping systems, viz. Sole chickpea; Sole linseed (Linum usitatissimum L.); Sole coriander (Coriandrum sativum L.); Sole wheat (Triticum aestivum L.); Sole mustard [Brassica juncea (L.) Czern.]; Chickpea + linseed (6:2); Chickpea + coriander (6:2); Chickpea + wheat (6:2); and Chickpea + mustard (6:2) were investigated in a randomized block design (RBD) with three replications. According to combined statistics, the chickpea + mustard intercropping system had the highest chickpea grain yield and equivalent yield (1,865 kg/ha and 2,574 kg/ ha, respectively) when compared to all other intercropping systems. Results of competitive indices revealed that compared to rest of the intercropping system, chickpea + mustard (6:2) recorded significantly higher LER (1.25), MAI (18,462) and SPI (2912 kg/ha), while the lowest land equivalent ratio (LER), monetary advantage index (MAI), system productivity index (SPI) and production efficiency (PE) were recorded in the chickpea + wheat intercropping system. The chickpea + mustard intercropping system yielded values of competition ratio (3.56), aggressivity (-0.05), system profitability index (2912), relative crowding coefficient (13.2), and area time equivalent ratio (1.24), that were sustainable and producible in comparison to other treatments. In terms of economics, compared to all other intercropping and solo crops, the chickpea + mustard intercropping system yielded the chickpea’s most significant net returns (`93,681/ha) and benefit cost (B:C) ratio (3.11). So, for south-eastern Rajasthan, the mustard and chickpea intercropping system is a productive and sustainable system.