Browsing by Author "SINGH, KULDEEP"
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ThesisItem Open Access EVALUATION OF WEED MANAGEMENT PRACTICES IN SUMMER MUNGBEAN (Vigna radiata) UNDER ZERO TILLAGE CONDITION(ICAR-NDRI, KARNAL, 2020) SINGH, KULDEEP; RAM, HARDEVA field experiment was conducted on “Evaluation of weed management practices in summer mungbean (Vigna radiata) under zero tillage condition” during summer season 2019-20 at Agronomy Research Farm, ICAR-NDRI, Karnal, Haryana. The experiment was laid out in Randomized Block Design consisting of 8 treatments and 3 replication viz., T1- Weedy check, T2 – Weed free, T3 – Pendimethalin (PE) @ 0.75 kg/ha, T4 –Pendimethalin fb HW at 20 DAS, T5 –Imezathyper (POE) @ 75 g/ha at 20 DAS, T6 – Shaked (Propaquizafop + Imezathyper) (2 L/ha) as POE, T7 – Pendimethalin @ 0.75 kg/ha fb Imezathyper @ 75 g/ha at 20 DAS and T8 – Pendimethalin @ 0.75 kg/ha fb Quizolofop ethyl @ 50 g/ha at 20 DAS . The soil at experiment site was clay loam in texture and having neutral pH (7.32), medium in OC (0.53%) and low in available N (164 kg/ha), medium in available P (19.5 kg/ha) and K (227.7 kg/ha). The results revealed that at 30 DAS, T2 treatment was recorded lowest weed population (1.86), weed dry weight (0.62g) and highest weed control efficiency (96.29%) followed by T4 (3.71, 3.78g and 83.53%, respectively) and T6. At harvest, T2 treatment was recorded lowest weed population (2.91), weed dry weight (1.89g) and highest weed control efficiency (98.49%) followed by T6 (4.49, 5.82g and 84.27%, respectively). At 30 DAS and harvest growth parameters such as plant height, no. of leaves/plant and no. of branches/plant were recorded significantly highest under T2 followed by T4. The maximum LAI was recorded with T2 which was at par with T4 and T6. Same trends were also observed in yield attributes. Significantly higher seed yield (10.10 q/ha) was recorded under T2 which was at par with T4 (9.49 q/ha) and T6 (9.47 q/ha). Significantly higher fodder yield (63.30 q/ha) was also recorded under T2 followed by T6 (55.67 q/ha) over rest of treatments. Seed and green fodder yield was increased by 127.99 and 113.76 and 59.32 and 40.12%, respectively higher under T2 and T6 treatments over T1. Significantly, higher total nutrient (NPK) uptake was recorded under T2 (83.25, 14.41 and 61.71 kg/ha) which was at par with T6 (82.66 kg/ha). Fodder quality parameters such as dry matter (28.83%) and crude protein (14.36%) content was significantly higher under T2 followed by T4. Same trends were also observed in seed quality parameters. T6 treatment recorded highest net returns (Rs 55,079/ha) and B: C (2.75) over rest of treatments followed by T2. Based on finding we concluded that POE application of Shaked (Propaquizafop + Imezathyper) at 20 DAS was performing superior in weed control, seed and fodder quality, seed yield and higher net returns from per rupee investment may recommended for weed management and higher yield of summer mungbean.