Abstract
Weed suppression is one of the several benefits associated with application of crop residues as mulch in field crops. Nonetheless, the crop residues on the soil surface contribute physically towards weed suppressive effect, yet the chemical effect of phytotoxins released from decomposing residues also imparts significantly for weed control. A field experiment aimed at establishing the weed suppression potential of mixture of crop residues and their effects on maize yield was conducted. Residues of sorghum (Sorghum bicolor L.), sunflower (Helianthus annuus L.), rice (Oryza sativa L.) and brassica (Brassica campestris L.) in various combinations were soil incorporated at 5 and 7.5 t per ha. Results revealed that a combination of sorghum + sunflower + brassica residues at 7.5 t per ha provided greater than 90% suppression in density and dry weight of horse purslane (Trianthema potrtulacastrum L.) and purple nutsedge (Cyperus rotundus L.) as compared with control (no residue). This treatment also accounted for maximum maize grain yield and net benefits. For better management of natural resources and to decrease environmental pollution, soil incorporation of crop residues may serve as an important weed management tool in maize fields.
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Claims 5
Claim · model-written summary
A mixture of sorghum, sunflower and brassica residues at 7.5 t per ha suppressed horse purslane density and dry weight by greater than 90% compared with no residue.
- Treatment
- combination of sorghum + sunflower + brassica residues at 7.5 t per hae1
- Interactor
- horse purslanee1weed
- Outcome
- density and dry weight of horse purslanee1
- Direction
- suppressione1
- Value
- greater than 90%e1
- Comparator
- control (no residue)e1
- Setting
- field experimente0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Organic weed management in maize (Zea mays L.)”
e0“A field experiment aimed at establishing the weed suppression potential of mixture of crop residues and their effects on maize yield was conducted”
e1“Results revealed that a combination of sorghum + sunflower + brassica residues at 7.5 t per ha provided greater than 90% suppression in density and dry weight of horse purslane (Trianthema potrtulacastrum L.) and purple nutsedge (Cyperus rotundus L.) as compared with control (no residue)”
Claim · model-written summary
The same residue mixture suppressed purple nutsedge density by greater than 90% compared with no residue.
- Treatment
- combination of sorghum + sunflower + brassica residues at 7.5 t per hae1
- Interactor
- purple nutsedgee1weed
- Outcome
- densitye1
- Direction
- suppressione1
- Value
- greater than 90%e1
- Comparator
- control (no residue)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Organic weed management in maize (Zea mays L.)”
e1“Results revealed that a combination of sorghum + sunflower + brassica residues at 7.5 t per ha provided greater than 90% suppression in density and dry weight of horse purslane (Trianthema potrtulacastrum L.) and purple nutsedge (Cyperus rotundus L.) as compared with control (no residue)”
Claim · model-written summary
The same residue mixture suppressed purple nutsedge dry weight by greater than 90% compared with no residue.
- Treatment
- combination of sorghum + sunflower + brassica residues at 7.5 t per hae1
- Interactor
- purple nutsedgee1weed
- Outcome
- dry weighte1
- Direction
- suppressione1
- Value
- greater than 90%e1
- Comparator
- control (no residue)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Organic weed management in maize (Zea mays L.)”
e1“Results revealed that a combination of sorghum + sunflower + brassica residues at 7.5 t per ha provided greater than 90% suppression in density and dry weight of horse purslane (Trianthema potrtulacastrum L.) and purple nutsedge (Cyperus rotundus L.) as compared with control (no residue)”
Claim · model-written summary
The residue mixture gave maximum maize grain yield and net benefits.
- Treatment
- combination of sorghum + sunflower + brassica residues at 7.5 t per hae1
- Outcome
- maize grain yield and net benefitse2
- Direction
- maximume2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Organic weed management in maize (Zea mays L.)”
e1“Results revealed that a combination of sorghum + sunflower + brassica residues at 7.5 t per ha provided greater than 90% suppression in density and dry weight of horse purslane (Trianthema potrtulacastrum L.) and purple nutsedge (Cyperus rotundus L.) as compared with control (no residue)”
e2“This treatment also accounted for maximum maize grain yield and net benefits”
Claim · model-written summary
Soil incorporation of crop residues may serve as an important weed management tool in maize fields.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Organic weed management in maize (Zea mays L.)”
e3“soil incorporation of crop residues may serve as an important weed management tool in maize fields”
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