Özet:

A field 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., T1: Farmers practices , T2: Stale seed bed (SSB) + glyphosate 41% SL 1.25 kg/ha, T3: SSB+ glyphosate 1.75 kg/ha, T4: SSB + glyphosate 1.25 kg/ha + pretilachlor 50% EC 1.0 kg/ha, T5: SSB +glyphosate 1.75kg/ha + pretilachlor 1.0 kg/ha, T6: SSB + glyphosate 1.25 kg/ha+ butachlor 50 % EC 1.0 kg/ha and T7: SSB + glyphosate 1.75 kg/ha +  butachlor 1.0 kg/ha were tested in randomised block design (RBD) with three replication. Cyperus rotundus was 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 (Echinocloa 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.

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