Abstract
Mulching with plant organic matter has been shown to reduce nematode population densities in various cropping systems. The level of nematode control is increased when such mulches are incorporated into the soil as organic amendments. Chromolaena odorata, Tithonia diversifolia and Pueraria phaseoloides are common cover crops in West and Central Africa that produce large quantities of nutrient rich biomass. The aim of this study was to determine, if in-situ mulching of C. odorata, T. diversifolia and P. phaseoloides is suitable for nematode control in Musa production. In a pot trial, the susceptibility of these plants to spiral nematodes was investigated. The effects of different quantities of surface mulch on nematode population densities in the soil and in banana roots also were determined. All mulch types and all quantities led to a reduction in nematode population densities in the soil. The strongest nematode reductions were observed in the Pueraria treatments. In treatments containing banana plants mulching improved plant growth compared to the clean-fallowed soil and induced lower root infestation rates. However, nematode soil populations were higher in mulched than in non-mulched banana treatments. Plant parasitic nematodes also were isolated from roots of all three cover crop species and all three plants caused an increase in nematode numbers in the soil. Therefore, the tested cover crops proved unsuitable for nematode control in a system with the highly susceptible bananas. Further examinations are needed to determine whether or not the positive effects of surface mulching on plantain plant growth and root infestation rates also have positive effects on yield in an in-situ mulching system in the presence of nematodes.
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Claims 10
Claim · model-written summary
All mulch types and quantities reduced nematode population densities in the soil.
MusaNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Musa cropping systems”
e1“All mulch types and all quantities led to a reduction in nematode population densities in the soil”
Claim · model-written summary
The strongest nematode reductions were observed in the Pueraria treatments.
PuerariaNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“The strongest nematode reductions were observed in the Pueraria treatments”
Claim · model-written summary
Mulching improved banana plant growth compared with clean-fallowed soil.
Verbatim
e3“In treatments containing banana plants mulching improved plant growth compared to the clean-fallowed soil”
Claim · model-written summary
Mulching induced lower banana root infestation rates than clean-fallowed soil.
Verbatim
e3“In treatments containing banana plants mulching improved plant growth compared to the clean-fallowed soil and induced lower root infestation rates”
Claim · model-written summary
Nematode soil populations were higher in mulched than in non-mulched banana treatments.
Verbatim
e4“However, nematode soil populations were higher in mulched than in non-mulched banana treatments”
Claim · model-written summary
Pueraria phaseoloides caused an increase in nematode numbers in the soil.
- Taxon
- Pueraria phaseoloides
Neustanthus phaseoloidest1 - Interactor
- Plant parasitic nematodese5pest
- Outcome
- nematode numbers in the soile5
- Direction
- increasee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Plant parasitic nematodes also were isolated from roots of all three cover crop species and all three plants caused an increase in nematode numbers in the soil”
t1“Pueraria phaseoloides”
Claim · model-written summary
Chromoleana odorata caused an increase in nematode numbers in the soil.
Verbatim
e5“Plant parasitic nematodes also were isolated from roots of all three cover crop species and all three plants caused an increase in nematode numbers in the soil”
t0“Chromoleana odorata”
Claim · model-written summary
Tithonia diversifolia caused an increase in nematode numbers in the soil.
- Taxon
- Tithonia diversifolia
Tithonia diversifoliat0 - Interactor
- Plant parasitic nematodese5pest
- Outcome
- nematode numbers in the soile5
- Direction
- increasee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Plant parasitic nematodes also were isolated from roots of all three cover crop species and all three plants caused an increase in nematode numbers in the soil”
t0“Tithonia diversifolia”
Claim · model-written summary
Plant parasitic nematodes were isolated from the roots of all three cover crop species.
Verbatim
e5“Plant parasitic nematodes also were isolated from roots of all three cover crop species and all three plants caused an increase in nematode numbers in the soil”
Claim · model-written summary
The tested cover crops were unsuitable for nematode control in the banana system.
Verbatim
e6“Therefore, the tested cover crops proved unsuitable for nematode control in a system with the highly susceptible bananas”
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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.