Effects of sequential and combined application of tank-mix herbicides on weed growth and productivity of maize (Zea mays)

RAJAN SHUKLA; AMIT BHATNAGAR; GURVINDER SINGH; DINESH KUMAR SINGH; SATYAM RAWAT; SANDEEP KUMAR

doi:10.56093/ijas.v93i10.136325

Authors

RAJAN SHUKLA Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, Uttarakhand 263 145, India
AMIT BHATNAGAR Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, Uttarakhand 263 145, India
GURVINDER SINGH Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, Uttarakhand 263 145, India
DINESH KUMAR SINGH Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, Uttarakhand 263 145, India
SATYAM RAWAT ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
SANDEEP KUMAR ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India

https://doi.org/10.56093/ijas.v93i10.136325

Keywords:

Maize, Tembotrione, Topramezone, Weed control efficiency, Weed index

Abstract

The field experiment was conducted at G.B. Pant University of Agriculture and Technology, Pantnagar, Uttarakhand during kharif season 2021–22 to evaluate the effects of tank-mix herbicides on weeds and maize (Zea mays L.) in order to determine the optimum dosage, application time and combinations of herbicides for maize. Based on the findings, it could be concluded that weed-free conditions are just as effective as atrazine applied with tembotrione or topramezone through sequential or tank mix application for reducing weeds effectively and increasing grain yield. Tank mix treatments of topramezone (25.2 g a.i./ha) and tembotrione (120 g a.i./ha) with reduced dose of atrazine (0.75 kg a.i./ha) should be employed by farmers since it not only removes weeds effectively but, also offers a better environment for maize to grow providing high profits for farmers. It also lowers the dose and expenses involved in manual weeding and spraying atrazine separately.

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