Efficacy of pre and post-emergence herbicides on weed control in chickpea (Cicer arietinum L.)
2019
Yadav, Vijay Laxmi | Shukla, U.N. | Raiger, P.R. | Mandiwal, Mukesh
The study was conducted at Agricultural Research Station, Mandor, Jodhpur during 2016–17 (rabi). The experiment was laid out in randomized block design (RBD) with 16 treatments and replicated thrice. The treatments were two doses of each herbicides i.e. pendimethalin (0.40 and 0.60 kg a.i./ha), oxyfluorfen (100 and 200 g a.i./ha) and imazethapyr (40 and 60 g a.i./ha) with their combinations as pre and post-emergence including weedy check and weed free. Among the herbicidal treatments, sequential application of pre and post-emergence herbicides i.e. pendimethalin @ 0.60 kg a.i./ha (PE) + imazethapyr @ 60 g a.i./haat 20 DAS(W₁₂) recorded significantly higher seed yield with higher weed control efficiency and weed index and established its superiority over other weed management treatments. However, it remained at par with pre and post-emergence herbicides i.e. pendimethalin @ 0.60 kg a.i./ha (PE) + imazethapyr @ 40 g a.i./ha at 20 DAS (W₁₁) at all growth stages of crop. Although, weed free recordedhigher seed yield and showed significant superiority over rest of the weedmanagement treatments, but it was statisticallyat par with W₁₂ and W₁₁
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