Effect of different Doses and Time of Applications of Topramezone on Weed Dynamics, Growth and Yield of Chickpea (Cicer arietinum L.) in Bihar (India)

Aims: To study the different levels of doses and time applications topramezone on weed, growth yield chickpea (Cicer arietinum L.) in Bihar.
 Place Duration Study: Agronomy research farm Tirhut College Agriculture, Dholi, Muzaffarpur (Bihar), during rabi 2020-21.
 Methodology: The experiment was carried out an RBD design with three replications ten treatments: (20.6 25.7 g/ha) applied at 14, 21, 28 DAS, quizalofop-p-ethyl (100 25 DAS as post-emergence (PoE), pre-emergence (PE) application valor 1000 g/ha + one hand weeding (HW) 30 weed-free control (WFC), weedy check.
 Results: PE HW recorded maximum plant height, number branches/plants, dry matter, seed straw while registered lowest weed weight WCE compared to all other herbicide treatments. Among PoE-treated treatments, spray (25.7 after 21 days sowing these parameters harvest matter highest PoE applications.