Abstract
Field trials were conducted in 2015 and 2016 cropping seasons to evaluate some herbicide mixtures and manual weed control method in the production of maize in the southern Guinea savanna of Nigeria. The experiment consisted of 10 treatments as follows: Metolachlor + atrazine and pendimethlin + atrazine at 1.0 + 2.0, 2.0+2.5, 3.0 + 3.0 kg a.i./ha, metolachlor + atrazine and pendimethlin + atrazine at 1.0 + 2.0 kg a.i./ha plus one supplementary hoe weeding (SHW) at 6 weeks after sowing (WAS), hand weeding at 3 and 6 WAS and a weedy check. These treatments were laid out in randomized complete block design (RCBD) with three replicates. Data collected included weed dry matter, weed density, relative importance value (RIV%) of weed species, leaf area, plant height and grain yield of maize. Also, economic assessment of the weed control methods was carried out. Results showed that metolachlor + atrazine and pendimethalin + atrazine at 1.0 + 2.0 kg a.i./ha plus one SHW at 6 WAS significantly reduced weed infestation and gave higher maize grain yield and economic returns. These methods are therefore recommended to farmers as alternative to two hand weeding at 3 and 6 WAS.
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Claims 7
Claim · model-written summary
Metolachlor plus atrazine with supplementary hoe weeding reduced weed infestation.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“metolachlor + atrazine and pendimethalin + atrazine at 1.0 + 2.0 kg a.i./ha plus one SHW at 6 WAS significantly reduced weed infestation”
t0“maize”
Claim · model-written summary
Pendimethalin plus atrazine with supplementary hoe weeding reduced weed infestation.
- Treatment
- pendimethalin + atrazine at 1.0 + 2.0 kg a.i./ha plus one SHW at 6 WASe0
- Interactor
- weede0weed
- Outcome
- weed infestatione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pendimethalin + atrazine at 1.0 + 2.0 kg a.i./ha plus one SHW at 6 WAS significantly reduced weed infestation”
t0“maize”
Claim · model-written summary
Metolachlor plus atrazine with supplementary hoe weeding gave higher maize grain yield.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“metolachlor + atrazine and pendimethalin + atrazine at 1.0 + 2.0 kg a.i./ha plus one SHW at 6 WAS significantly reduced weed infestation and gave higher maize grain yield”
Claim · model-written summary
Pendimethalin plus atrazine with supplementary hoe weeding gave higher maize grain yield.
- Treatment
- pendimethalin + atrazine at 1.0 + 2.0 kg a.i./ha plus one SHW at 6 WASe0
- Outcome
- maize grain yielde0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pendimethalin + atrazine at 1.0 + 2.0 kg a.i./ha plus one SHW at 6 WAS significantly reduced weed infestation and gave higher maize grain yield”
Claim · model-written summary
Metolachlor plus atrazine with supplementary hoe weeding gave higher economic returns.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“metolachlor + atrazine and pendimethalin + atrazine at 1.0 + 2.0 kg a.i./ha plus one SHW at 6 WAS significantly reduced weed infestation and gave higher maize grain yield and economic returns”
Claim · model-written summary
Pendimethalin plus atrazine with supplementary hoe weeding gave higher economic returns.
- Treatment
- pendimethalin + atrazine at 1.0 + 2.0 kg a.i./ha plus one SHW at 6 WASe0
- Outcome
- economic returnse0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pendimethalin + atrazine at 1.0 + 2.0 kg a.i./ha plus one SHW at 6 WAS significantly reduced weed infestation and gave higher maize grain yield and economic returns”
t0“maize”
Claim · model-written summary
The authors recommend both herbicide mixtures with supplementary hoe weeding as alternatives to two hand weedings.
- Outcome
- alternative to two hand weeding at 3 and 6 WASe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These methods are therefore recommended to farmers as alternative to two hand weeding at 3 and 6 WAS”
t0“maize”
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