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Effects of stale seedbed and subsequent application of herbicides on weeds and productivity of jute (Corchorus olitorius L.) fibre

Journal: The Journal of AgriSearch (JAS) (Vol.5, No. 1)

Publication Date:

Authors : ;

Page : 8-12

Keywords : Jute; Cyperus rotundus; Stale seedbed; weeds;

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Abstract

Afield experiment was conducted to find out suitable weed management practice for control of broad spectrum weeds in jute during 2015 and 2016. Seven weed management practices viz., T: 1Farmers practices , T: Stale seed bed (SSB) + glyphosate 41% SL1.25 kg/ha, T: SSB+glyphosate 1.75 23kg/ha, T: SSB + glyphosate 1.25 kg/ha + pretilachlor 50% EC 1.0 kg/ha, T: SSB +glyphosate 451.75kg/ha + pretilachlor 1.0 kg/ha, T: SSB +glyphosate 1.25 kg/ha+butachlor 50 % EC 1.0 kg/ha and 6T: SSB + glyphosate 1.75 kg/ha + butachlor1.0 kg/ha were tested in randomised block design (RBD) 7with three replication. Cyperus rotunduswas dominant weed species with 60-75 % of relative density in experimental field. SSB + glyphosate 1.75 kg/ha + pretilachlor 1.0 kg/ha effectively controlled density and dry weight of Cyperus rotundus, grass weeds (Echinochloa colonum and Eleusine indica), broad leaved weeds (Physalis minima, and Trianthema portulacastrum) compared to farmers' practices. SSB + glyphosate 1.75 kg/ha + pretilachlor 1.0 kg/ha also recorded the highest plant height (293 cm and 335 cm), basal diameter (2.14 and 2.19 cm) and fibre yield (34.9 and 38.9 q/ha) of jute during 2015 and 2016. This treatment also recorded the highest net income (Rs 54182 and 75687/ha) and benefit-cost ratio (1.23 and 1.46) in jute cultivation during 2015 and 2016, Therefore, SSB with glyphosate 1.75 kg/ha +pretilachlor 1.0 kg/ha may be practiced for effective weeds control specially Cyperus rotundus, higher productivity and income in jute cultivation

Last modified: 2020-09-16 13:52:13