Agronomic Investigations on Management of Abiotic and Biotic Stress in Rainfed Chickpea Cicer arietinum L

Abstract

out during rabi season of 2005-06 and 2006-07 at Agricultural Research Station, newlineGangavathi, UAS, Dharwad, Karnataka. newlineInteraction of FYM cured DAP and seed priming with 2% SSP (P5S3) recorded newlinehighest grain yield of 1705 kg/ha which was significantly superior and was on par with newlineinteractions P1S2, P1S3, P1S5, P1S6, P2S2, P2S3, P5S1, P5S3, P5S4, P5S5 and P5S6. While, newlinelowest grain yield of 1096 kg/ha was obtained from combination involving P application in the newlineform of FYM and without seed treatment. Similarly, increased number of pods per plant at 60 newlineDAS (29.7) and at harvest (37.7), grain weight per plant (16.09g) and test weight (9.02g) was newlinerecorded with application of recommended dose of phosphorus through FYM cured DAP and newlineseed priming with 2% SSP. Higher uptake of total nitrogen (102.8 kg/ha), phosphorus (9.0 newlinekg/ha) and potash (102.7 kg/ha) was recorded with interaction of FYM cured DAP and seed newlinepriming with 2% SSP compared to other interactions except P1S2 P1S3, P1S6, P2S2 and P2S6. newlineInteraction of FYM cured DAP and seed priming with 2% SSP recorded higher gross income newline(37517 Rs/ha), net income (29588 Rs/ha) and B:C ratio (3.73) over other interactions. newlineSignificantly higher chickpea equivalent yield (CEY) was recorded in chickpea + newlinesunflower intercropping (T2, 1436 kg/ha). While, lowest CEY was observed in chickpea + newlinewheat intercropping (T7). Higher number of pods per plant at 60 DAS (T9, 24.6) and at harvest newline(T9, 34.1) was recorded in sole chickpea. While, lowest number of pods per plant was newlinerecorded in chickpea + wheat (T7) intercropping. Similarly, grain weight (T9, 7.56 g/plant) and newlinetest weight (T9, 15.4 g) were also significantly superior in sole chickpea than other newlineintercropping systems. newlineThe population of Helicoverpa larvae was reduced as the stage of crop advanced. newlineSignificantly lower number of larvae was observed in chickpea + sunflower intercropping newlinesystem. Similarly, the population of spiders and coccinellids were higher in chickpea + newlinesunflower intercropping system compared to sole chickpea. Higher gro