Productivity of zero-till wheat (Triticum aestivum) under different establishment methods, seed rate and weed control

MOUMITA BARUA; TARUNDEEP KAUR; MAKHAN S BHULLAR; JASVIR SINGH GILL

doi:10.56093/ijas.v91i7.115110

Authors

MOUMITA BARUA Punjab Agricultural University, Ludhiana 141 027, India
TARUNDEEP KAUR Punjab Agricultural University, Ludhiana 141 027, India
MAKHAN S BHULLAR Punjab Agricultural University, Ludhiana 141 027, India
JASVIR SINGH GILL Punjab Agricultural University, Ludhiana 141 027, India

https://doi.org/10.56093/ijas.v91i7.115110

Keywords:

Clodinafop, Metribuzin, Paddy straw residue, Wheat yield

Abstract

Field experiment was planned to investigate the integration of establishment methods, variable seed rates and weed control in zero-till wheat (Triticum aestivum L.). The experiment was conducted in split-plot design with four replications. Treatments consisted of two establishment methods, i.e. zero till wheat with residue, viz. ZT+R (6 t/ha) and zero till wheat without residue, viz. ZT-R (0 t/ha), two levels of wheat seed rate (100 kg/ha (recommended) and 150 kg/ha) and four levels of weed control (weedy check, weed free, clodinafop + metribuzin 275 g/ha (recommended) and clodinafop + metribuzin 206.3 g/ha). The results revealed that clodinafop + metribuzin 275 g/ha in ZT + R had significantly lower P. minor biomass (25-27%) than ZT-R; however 16 and 14%biomass of broadleaved weeds were recordedat 90 days after sowing. Interaction effect revealed that in 2017-18, under weedy check, ZT+R had lower weed biomass and gave 14.9% higher grain yield than ZT-R; however in 2016-17, both ZT+R and ZT-R methods recorded almost similar yield. Integrated use of clodinafop+metribuzin 275 g/ha in zero till wheat sown in paddy residues gave the highest wheat grain yield (5465-5531 kg/ha) which was similar to weed free.

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