Sustainable Yield Maximization Through Integrated Management Options in Medium Duration Pigeonpea

摘要

A field experiment was conducted over two consecutive years (kharif 2014-15 and 2015-16) at the Centre for Pulses Research, OUAT, Berhampur, Odisha, to study the interactions of integrated management options for yield maximization in medium duration pigeonpea. The trial was laid out in RBD with three replications and 8 treatments viz. Tl: INM (FYM @ 5t/ha + STBF i:e. NPKSZn + foliar Boron); T2 : IWM (pendimethalin (30 EC) 0.75kg/ha on 3 DAS + imazethapyr (10 SL) @ lOOg ai/ha on 10-15 DAE of weeds + 1HW on 50 DAS/1 inter cultivation on 50 DAS); T3: IPM (Neem Oil (1500 ppm) @ 3 ml/litre at bud initiation stage + Indoxacarb 15.8% EC @ lml/litre at the time of pod initiation stage + imidacloprid @ 0.3 ml/litre at 15 days after previous spray); T4: INM+PvVM; T5: INM+IPM ; T6: IWM+IPM ; T7: INM+rWM+rPM ; T8: Control (Farmer's practices like 1 HW at 50 DAS + 50 % RDF + 1 spray of triazophos 40 EC @ 2ml/litre at 50 % flowering stage). Variety TTB-7 was sown in rainfed condition during Kharif. The pooled result revealed that the maximum plant height (179.5cm), number of primary fruiting branches/plant (9.23), number of pods/ plant (151.7), number of seeds/pod (3.80) and ultimately the highest grain yield (1674.5kg/ha) were recorded with the T7 (INM+IWM+IPM) which was 79.5% higher than that of control (933kg/ha). This treatment also registered highest net return (49,341/-). However, maximum B:C ratio (3.15) was obtained withT5 (INM+IPM). Prioritizing management options, IPM proved to be the first priorityfollowed by INM and IWM in respect to grain yield & economics of pigeonpea. However, combined adoption of all management practices ie. INM, IWM and IPM together sustainably maximize the grain yield of medium duration pigeonpea.