Sequential application of bispyribac sodium 10 EC at 25 g/ha after bensulfuron + pretilachlor 6.6 G at 660 g/ha, recorded higher weed control efficiency (97%), grain yield (6.0 t/ha) and B:C ratio (2.3) over other herbicide treatments and weedy check (2.7 t/ha) in rice-rice cropping system of irrigated areas.
Pre-emergence application of pretilachlor 6% + bensulfuron methyl 0.6% GR (ready-mix) 660 g/ha at 3 DAT fb post-emergence application of bispyribac sodium 10 EC 25 g/ha at 20 DAT found to be effective control of all types of weeds in rice and registered higher yield (6.1 t/ha), net return and B-C ratio (2.4).
The crop supplied with 50% RDF through inorganic fertilizer + 50% RDF through organic sources (based on nitrogen requirement), recorded the highest grain yield (3.7 t/ha) over control (1.8 t/ha) and comparable with the yield recorded under recommended dose of fertilizer (3.4 t/ha). Scented rice PB1509 registered the highest grain yield (3.8 t/ha) over Nabarna (2.8 t/ha). which was higher by 34.2 and 26.3% over Nabarna and Kalamali, respectively. However, production efficiency of Nabarna (31.1 kg/ha/day) was more than that of Kalamali and at par with PB1509.
Plant Pathology
Seed treatment with Imidacloprid 600 FS @ 5g/kg of seed, installation of yellow sticky traps @50 Nos./ha and spraying of Acetamprid 20 SP @0.3 g/lit of water twice at 30 days after sowing at 15 days interval recorded lowest whitefly population and least yellow vein mosaic disease severity in okra over untreated control.
Seed treatment with Carboxin + Thiram @ 0.2% and three spraying of Difenoconazole (0.1%) starting from the initiation of the disease at 10 days interval was found most effective in reducing anthracnose disease of chilli.
Seed treatment of onion with Carboxin 37.5%+Thiram 37.5% @ 2gm/kg of seed and three foliar spraying with Tebuconazole 50% + Trifloxystrobin 25% WG @ 0.4 gm/lit of water at 10 days interval starting from initiation of the disease (35 DAT) was most effective in reducing the purple blotch disease of onion by 69.5% and increasing the bulb yield by 83.4% in comparison to untreated control.
Seed treatment with Thiamethoxam 25 WG @ 5g/kg seed followed by installation of yellow sticky trap (YST) 50/ha and spraying of Acetamiprid @ 0.03% twice at 30 days after sowing at 15 days interval are effective for management of YMV disease in mungbean.
Seed treatment with Trichodermaviride+ Pseudomonas fluorescens@ 10.0g/kg seed + soil application of T. viride& P. fluorescens@ 2.5kg/ha +soil application of neem cake @ 5 q/ha + drenching with T. viride&P. fluorescens @10 g/l each twice at 10 days interval starting from 30DAT are effective for biological managementof sclerotium rot of chilliand gave highest dry chilli yield.