Abstract
Both neem extract and azadirachtin are widely used in agriculture as organic pesticides because they are nontoxic to humans, animals, and the environment.However, their effects on soil microorganisms and plant growth-promoting rhizobacteria (PGPR), which directly affect soil quality, remain largely unexplored.In this study, the effects of neem extract and azadirachtin on the activity of soil microbes and rhizosphere microorganisms was evaluated.We found that 0.1 and 0.4 gmL -1 of the extract and 1.25 and 2.5 µgmL -1 of azadirachtin inhibited the activity of soil microorganisms in vitro.Treating soil with azadirachtin for two months reduced the number of microorganisms present, while two months of treatment with neem extract increased the number of microorganisms in both the soil and the rhizosphere.The phytopathogenic bacterium Pectobacterium carotovorum was more resistant to azadirachtin than Rhizobium sp.Moreover, treatment of mung beans with neem extract or azadirachtin reduced the number of root nodules and Trichoderma asperellum in the rhizosphere, when compared to the control.
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Claims 4
Claim · model-written summary
Neem extract reduced mung bean root nodules relative to control.
- Taxon
- mung beans
.jpg?width=60)
Vigna radiatae0 - Treatment
- neem extracte0
- Outcome
- number of root nodulese0
- Direction
- reducede0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“treatment of mung beans with neem extract or azadirachtin reduced the number of root nodules and Trichoderma asperellum in the rhizosphere, when compared to the control”
Claim · model-written summary
Azadirachtin reduced mung bean root nodules relative to control.
- Taxon
- mung beansVigna radiatae0
- Treatment
- azadirachtine0
- Outcome
- number of root nodulese0
- Direction
- reducede0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“treatment of mung beans with neem extract or azadirachtin reduced the number of root nodules and Trichoderma asperellum in the rhizosphere, when compared to the control”
Claim · model-written summary
Neem extract reduced rhizosphere Trichoderma asperellum in mung beans relative to control.
- Taxon
- mung beansVigna radiatae0
- Treatment
- neem extracte0
- Interactor
- Trichoderma asperellum
Trichoderma asperellume0symbiont - Outcome
- Trichoderma asperellum in the rhizospheree0
- Direction
- reducede0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“treatment of mung beans with neem extract or azadirachtin reduced the number of root nodules and Trichoderma asperellum in the rhizosphere, when compared to the control”
Claim · model-written summary
Azadirachtin reduced rhizosphere Trichoderma asperellum in mung beans relative to control.
- Taxon
- mung beansVigna radiatae0
- Treatment
- azadirachtine0
- Interactor
- Trichoderma asperellumTrichoderma asperellume0symbiont
- Outcome
- Trichoderma asperellum in the rhizospheree0
- Direction
- reducede0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“treatment of mung beans with neem extract or azadirachtin reduced the number of root nodules and Trichoderma asperellum in the rhizosphere, when compared to the control”
The same questions in other papers
Azadirachta indica · symbiosis · Vigna radiata (mung bean)Positive and negative results
1 in the opposite direction
- positive
botanical · symbiosis · Vigna radiata (mung bean)Positive and negative results
5 in the opposite direction
- positive
- positive
- positive
2 papers more in this group
See all 6 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.