Abstract
Field experiment was conducted at the Teaching and Research Farm, Faculty of Agriculture, Kogi State University, Anyigba in 2014 to assess the effects of some herbicides on the control of purple nutsedge in soybean. The field used for the trial was left fallow for about five years and predominantly infested with purple nutsedge. It was then ploughed, harrowed and ridged. The treatments applied consisted oflinuron [N-(3, 4-dichlorophenyl)-N-methoxy-N-methyl urea] at 2.0 and 2.5 kg a.i/ha; 2,4-D [ (2,4-dichlorophenoxy) acetic acid ] at 2.0 and 3.0 kg a.i/ha; glyphosate [N- (phosphonomethyl) glycine] at 2.0 and 2.5 kg a.i/ha; a tank mixture of glufosinate [2-amino-4- (hydroxymethylphosphinyl) butanoic acid] + fluazifop [ (R) -2-[5-(trifluoromethyl)-2- pyridinyl ] oxy] phenoxy] propanoic acid] at 2.5 and 3.0 kg a.i/ha, manual hoe weeding at 3,6 and 9 WAS and the weedy check. In this trial,the application of 2.0 and 2.5 kg a.i/ha of glyphosate was found to be most efficacious in the control of purple nutsedge. Glyphosate applied at both rates compared favourably with hoe weeding at 3,6 and 9 WAS in the control of purple nutsedge and resulted in the highest grain yield of soybean in the area. A tank mixture of glufosinate + fluazifop at 3.0 kg a;/ha equally gave a good control of purple nutsedge and the soybean grain yield produced therein was comparable to that obtained from plots treated with both rates of glyphosate or that were hoe weeded. Results obtained in this study suggest that glyphosate applied at 2.5 kg a.i/ha could provide alternative management option for the control of purple nutsedge to manual hoe-weeding and for ensuring higher grain yield of soybean.
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Claims 7
Claim · model-written summary
Glyphosate at 2.0 and 2.5 kg a.i/ha was the most efficacious treatment for controlling purple nutsedge in soybean.
- Taxon
- soybean
Glycine maxt0 - Treatment
- 2.0 and 2.5 kg a.i/ha of glyphosatee1
- Interactor
- purple nutsedgee1weed
- Outcome
- control of purple nutsedgee1
- Direction
- most efficaciouse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the application of 2.0 and 2.5 kg a.i/ha of glyphosate was found to be most efficacious in the control of purple nutsedge”
t0“soybean (Glycine max (L.) Merrill)”
Claim · model-written summary
Glyphosate applied at both rates compared favourably with hoe weeding in controlling purple nutsedge in soybean.
- Taxon
- soybeanGlycine maxt0
- Treatment
- Glyphosate applied at both ratese2
- Interactor
- purple nutsedgee2weed
- Outcome
- control of purple nutsedgee2
- Direction
- compared favourablye2
- Comparator
- hoe weeding at 3,6 and 9 WASe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Glyphosate applied at both rates compared favourably with hoe weeding at 3,6 and 9 WAS in the control of purple nutsedge”
t0“soybean (Glycine max (L.) Merrill)”
Claim · model-written summary
Glyphosate applied at both rates gave the highest soybean grain yield.
- Taxon
- soybeanGlycine maxt0
- Treatment
- Glyphosate applied at both ratese3
- Outcome
- grain yield of soybeane3
- Direction
- higheste3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Glyphosate applied at both rates compared favourably with hoe weeding at 3,6 and 9 WAS in the control of purple nutsedge and resulted in the highest grain yield of soybean”
t0“soybean (Glycine max (L.) Merrill)”
Claim · model-written summary
Glufosinate plus fluazifop at 3.0 kg a;/ha equally gave a good control of purple nutsedge.
- Taxon
- soybeanGlycine maxt0
- Treatment
- glufosinate + fluazifop at 3.0 kg a;/hae4
- Interactor
- purple nutsedgee4weed
- Outcome
- control of purple nutsedgee4
- Direction
- equally gave a good controle4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“A tank mixture of glufosinate + fluazifop at 3.0 kg a;/ha equally gave a good control of purple nutsedge”
t0“soybean (Glycine max (L.) Merrill)”
Claim · model-written summary
Soybean grain yield under glufosinate plus fluazifop at 3.0 kg a;/ha was comparable to plots treated with both glyphosate rates or hoe weeded.
- Taxon
- soybeanGlycine maxt0
- Treatment
- glufosinate + fluazifop at 3.0 kg a;/hae5
- Outcome
- soybean grain yielde5
- Direction
- comparablee5
- Comparator
- plots treated with both rates of glyphosate or that were hoe weedede5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“A tank mixture of glufosinate + fluazifop at 3.0 kg a;/ha equally gave a good control of purple nutsedge and the soybean grain yield produced therein was comparable to that obtained from plots treated with both rates of glyphosate or that were hoe weeded”
t0“soybean (Glycine max (L.) Merrill)”
Claim · model-written summary
Glyphosate at 2.5 kg a.i/ha is suggested as an alternative management option to manual hoe-weeding for controlling purple nutsedge in soybean.
- Taxon
- soybeanGlycine maxt0
- Treatment
- glyphosate applied at 2.5 kg a.i/hae6
- Interactor
- purple nutsedgee6weed
- Outcome
- alternative management option for the control of purple nutsedgee6
- Comparator
- manual hoe-weedinge6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Results obtained in this study suggest that glyphosate applied at 2.5 kg a.i/ha could provide alternative management option for the control of purple nutsedge to manual hoe-weeding and for ensuring higher grain yield of soybean”
t0“soybean (Glycine max (L.) Merrill)”
Claim · model-written summary
Glyphosate at 2.5 kg a.i/ha is suggested for ensuring higher soybean grain yield.
- Taxon
- soybeanGlycine maxt0
- Treatment
- glyphosate applied at 2.5 kg a.i/hae6
- Outcome
- higher grain yield of soybeane6
- Direction
- highere6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Results obtained in this study suggest that glyphosate applied at 2.5 kg a.i/ha could provide alternative management option for the control of purple nutsedge to manual hoe-weeding and for ensuring higher grain yield of soybean”
t0“soybean (Glycine max (L.) Merrill)”
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