Comparative Efficacy of Weed Control Practices for Parthenium Weed and Sunflower Crop under Varying Tillage Systems |
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Authors: | Noor Ahmad Rana Nadeem Abbas Asif Tanveer Zulfiqar Ahmad Saqib |
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Institution: | 1 Deaprtment of Agronomy, University of Agriculture Faisalabad, Faisalabad, 7800, Pakistan2 Institute of Soil and Environmental Science, University of Agriculture Faisalabad, Faisalabad, 7800, Pakistan |
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Abstract: | Parthenium poses serious threat to modern crop production system and
necessitate evaluating control practices for its effective management. Efficacy of
different weed control practices for controlling parthenium was explored in conventional and deep tillage systems in the field conditions. Hand hoeing (20 and
35 days after emergence), S-Metolachlor (pre-emergence herbicide), sorghum
straw mulch @ 5 tons ha-1 and combination of hand hoeing and sorghum straw
mulch (hand hoeing at 20 and straw mulch at 35 days after emergence) were used
as weed control practice. Weedy check where no weed control measure was
applied was also included in this experiment for comparison. Results concluded
that the all weed management treatments significantly reduced parthenium density, its fresh and dry biomass during both the years of study as compared to weedy check. Maximum sunflower achene yield was recorded in hand hoeing (20 and
35 days after emergence) in combination with deep tillage. So, mold bold plough
used for the purpose of deep tillage should be encouraged for better control of
parthenium and higher achene yield of sunflower crop (3293.3 kg ha-1 in 2017
and 3221.3 kg ha-1 in 2018). Moreover, is also inferred that total dose of herbicide
might be reduced by using hoeing and mulching in an integrated way. |
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Keywords: | Parthenium mulch hoeing tillage s-metolachlor sunflower |
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