Abstract
ABSTRACT Sugarcane leaves, both green and fallen, left after harvest, are agricultural residues containing compounds that inhibit weed germination and seedling growth. This study evaluated their allelopathic effects and mulching potential for weed control. Experimental results using seeds of Ipomoea pes‐tigridis and Dactyloctenium aegyptium suggest that the aqueous extract from sugarcane leaf litter reduces seedling growth . When compared to mulch made from extracted sugarcane leaves, mulch made from nonextracted leaves considerably decreased weed emergence and biomass in the pot experiment. It appears that the weed suppression was not just due to the mulching but also to the allelochemicals that were still present in the unprocessed leaves. Weed germination and seedling rates appeared to be lowered, possibly due to the presence of allelochemicals, especially phenolic compounds. Under sugarcane production conditions, field experiments were conducted to evaluate the effects of soil mulching using sugarcane leaf litter applied at rates of 4, 8 and 12 t ha −1 . As a soil mulch, sugarcane leaf litter resulted in reduced weed density and biomass compared to typical agricultural practices, with weed control efficacy improving at higher rates of application. For instance, mulching rates of 8 and 12 t ha −1 resulted in respective sugarcane outputs of 104.2 and 111.6 t ha −1 , whereas mechanical, manual and no weeding respectively yielded 81.25, 126.88 and 31.25 t ha −1 . Based on these findings, the utilisation of sugarcane leaf litter as a soil mulch can reduce weed seed germination and growth, and can therefore be considered as an agroecological practice to be included in sustainable weed management strategies.
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Claims 13
Claim · model-written summary
Aqueous sugarcane litter extract reduced Ipomoea pes‐tigridis seedling growth.
- Taxon
- Sugarcanet0
- Treatment
- aqueous extract from sugarcane leaf littere0
- Interactor
- Ipomoea pes‐tigridis
Ipomoea pes-tigridise0weedt1 - Outcome
- seedling growthe0
- Direction
- reducese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Experimental results using seeds of Ipomoea pes‐tigridis and Dactyloctenium aegyptium suggest that the aqueous extract from sugarcane leaf litter reduces seedling growth”
t0“Allelopathic Sugarcane”
t1“Weed Management”
Claim · model-written summary
Aqueous sugarcane litter extract reduced Dactyloctenium aegyptium seedling growth.
- Taxon
- Sugarcanet0
- Treatment
- aqueous extract from sugarcane leaf littere0
- Interactor
- Dactyloctenium aegyptium
Dactyloctenium aegyptiume0weedt1 - Outcome
- seedling growthe0
- Direction
- reducese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Experimental results using seeds of Ipomoea pes‐tigridis and Dactyloctenium aegyptium suggest that the aqueous extract from sugarcane leaf litter reduces seedling growth”
t0“Allelopathic Sugarcane”
t1“Weed Management”
Claim · model-written summary
Nonextracted sugarcane leaf mulch decreased weed emergence and biomass versus extracted mulch in pots.
Verbatim
e0“When compared to mulch made from extracted sugarcane leaves, mulch made from nonextracted leaves considerably decreased weed emergence and biomass in the pot experiment”
t0“Allelopathic Sugarcane”
t1“Weed Management”
Claim · model-written summary
The authors infer that remaining allelochemicals contributed to weed suppression beyond mulching.
Verbatim
e0“It appears that the weed suppression was not just due to the mulching but also to the allelochemicals that were still present in the unprocessed leaves”
t0“Allelopathic Sugarcane”
t1“Weed Management”
Claim · model-written summary
The authors suggest phenolic compounds may have lowered weed germination and seedling rates.
Verbatim
e0“Weed germination and seedling rates appeared to be lowered, possibly due to the presence of allelochemicals, especially phenolic compounds”
t0“Allelopathic Sugarcane”
t1“Weed Management”
Claim · model-written summary
Sugarcane litter mulch reduced field weed density and biomass versus typical practices.
Verbatim
e0“As a soil mulch, sugarcane leaf litter resulted in reduced weed density and biomass compared to typical agricultural practices”
t0“Allelopathic Sugarcane”
t1“Weed Management”
Claim · model-written summary
Weed control efficacy improved at higher sugarcane litter application rates.
Verbatim
e0“weed control efficacy improving at higher rates of application”
t0“Allelopathic Sugarcane”
t1“Weed Management”
Claim · model-written summary
Mulching at 8 yielded 104.2 sugarcane.
Not reportedComparatorDirection
Verbatim
e0“mulching rates of 8 and 12 t ha −1 resulted in respective sugarcane outputs of 104.2 and 111.6 t ha −1 , whereas mechanical, manual and no weeding respectively yielded 81.25, 126.88 and 31.25 t ha −1”
Claim · model-written summary
Mulching at 12 t ha −1 yielded 111.6 t ha −1 sugarcane.
Not reportedComparatorDirection
Verbatim
e0“mulching rates of 8 and 12 t ha −1 resulted in respective sugarcane outputs of 104.2 and 111.6 t ha −1 , whereas mechanical, manual and no weeding respectively yielded 81.25, 126.88 and 31.25 t ha −1”
Claim · model-written summary
mechanical weeding yielded 81.25 sugarcane.
Not reportedDirection
Verbatim
e0“mulching rates of 8 and 12 t ha −1 resulted in respective sugarcane outputs of 104.2 and 111.6 t ha −1 , whereas mechanical, manual and no weeding respectively yielded 81.25, 126.88 and 31.25 t ha −1”
Claim · model-written summary
manual weeding yielded 126.88 sugarcane.
Not reportedDirection
Verbatim
e0“mulching rates of 8 and 12 t ha −1 resulted in respective sugarcane outputs of 104.2 and 111.6 t ha −1 , whereas mechanical, manual and no weeding respectively yielded 81.25, 126.88 and 31.25 t ha −1”
Claim · model-written summary
no weeding weeding yielded 31.25 t ha −1 sugarcane.
Not reportedDirection
Verbatim
e0“mulching rates of 8 and 12 t ha −1 resulted in respective sugarcane outputs of 104.2 and 111.6 t ha −1 , whereas mechanical, manual and no weeding respectively yielded 81.25, 126.88 and 31.25 t ha −1”
Claim · model-written summary
The authors recommend sugarcane litter mulch for sustainable weed management.
Verbatim
e0“the utilisation of sugarcane leaf litter as a soil mulch can reduce weed seed germination and growth, and can therefore be considered as an agroecological practice to be included in sustainable weed management strategies”
t0“Allelopathic Sugarcane”
t1“Weed Management”
The same questions in other papers
mulching · weed · Saccharum officinarum (sugarcane)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.