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Indian Journal of Weed Science
Year : 2017, Volume : 49, Issue : 3
First page : ( 293) Last page : ( 294)
Print ISSN : 0253-8040. Online ISSN : 0974-8164.
Article DOI : 10.5958/0974-8164.2017.00077.6

Sequential application of pre-and post-emergence herbicides to control mixed weed flora in maize

Nazreen Shaik, Subramanyam D.*

Department of Agronomy, S.V. Agricultural College, Acharya NG Ranga Agricultural University, Tirupati, Andhra Pradesh, 517 502

*Corresponding author: subbuagro37@gmail.com

Online published on 27 December, 2017.

Abstract

A field experiment was laid out in randomized block design with ten weed management practices to determine the bioefficacy of PoE herbicides, halosulfuron-methyl 67.5 g/ha and tembotrione 100 g/ha alone or tank mix and sequential application after PE application of alachlor 1000 g/ha, besides two hand weedings and unweeded control. The broadspectrum weed control and the highest grain yield of rainy season maize was obtained with sequntial application of alachlor 1000 g/ha as PE fb PoE application of halosulfuron-methyl 67.5 g/ha + tembotrione 100 g/ha (tank mix). Post-emergence application of halosulfuron-methyl 67.5 g/ha effectively controlled purple nutsedge.

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Keywords

Halosulfuron-methyl, Maize, Tembotrione, Sequential application, Weed growth.

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