Abstract:A field trial was carried out on effect of integrated weed management practices on growth and yield of Indian mustard during the
rabi season of 2020-21 at Mahurzari farm, Nagpur, Maharashtra, India. The experiment was laid out in randomized block design with 7 treatments and 3 replications. The treatments consisted of T
1- Pendimethalin 30 EC (PE) @ 2.5 lit/ha + HW at 30 DAS,
T
2- Propaquizafop 10 EC (PoE) @ 1 lit/ha + HW at 30 DAS, T
3 - Oxyfluorfen 23.5 EC (PE) @ 0.5 lit/ha + HW at 30 DAS, T
4-Oxyfluorfen 23.5 EC (PE) @ 0.5 lit/ha + propaquizafop 10 EC (PoE) @ 1 lit/ha + WH at 40 DAS, T
5- Pendimethalin 30EC (PE) @ 1 lit/ha + propaquizafop 10EC (PoE) @ 1 lit/ha + WH at 40 DAS, T
6- Hand Weeding twice at 30 and 60 DAS and
T
7-Weed Control. The soil of the experimental field was clay loam in texture, organic carbon, available nitrogen and phosphorus were low and potassium content medium.
Among the weed management treatments, the growth and yield parameters of Indian mustard viz. plant height, number of primary and secondary branches per plant, dry matter weight per plant, number of siliqua per plant, number of seeds per siliqua, 1000 seed weight, seed weight per plant, seed yield and stover yield per hectare were recorded highest with treatment T6- Hand Weeding twice at 30 and 60 followed by T5, T4, T1, T3, T2, over T7.
Henceforth, on the basis of this study, it can be revealed that application of pendimethalin 30 EC (PE) + propaquizafop 10 EC (PoE) + WH at 40 DAS has a B:C ratio of 2.28 have been found suitable for achieving economic yield advantage from mustard with higher net returns followed by oxyfluorfen 23.5 EC (PE) + propaquizafop 10 EC (PoE) + WH at 40 DAS, which has a B:C ratio of 1.99 compared to other treatments.