Abstract
A field study on the effect of herbicide (pendimethalin) on soil microbial community was conducted between August to September (2010) on a sandy-loamy soil located at the Federal University of Technology, Crop Science Departmental Farm Gidan-Kwano, Minna, Nigeria. Samples were collected randomly from the experimental farm before and after application of herbicide; on which cowpea was cultivated. Herbicide (Pendimethalin) was applied at below recommended rate, recommended rate and above recommended rate. The result reveals the following herbicide treatments at the recommended rates resulted in decrease in microbial count. High concentration of herbicide treatment resulted in a much lower microbial count compared to soil treated rate, recommended herbicides and none treated soil. The most frequently isolated bacteria from herbicide treated soil are Bacillus and Pseudomonas sp.,while Aspergillus, Rhizopus and Penicillium sp. were the most frequently isolated fungi from treated soils. Cowpea yield was highest in site treated with herbicide at above recommended rate and lowest in the control site. The results revealed that herbicide is an integral part of farming, although it has a significant effect on soil microbial community. Key words: Herbicide (pendimethalin), recommended rate, recommended rate and above recommended rate.
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Claims 6
Claim · model-written summary
Pendimethalin at recommended rates decreased the soil microbial count.
- Taxon
- cowpea
Vigna unguiculatae0 - Treatment
- herbicide treatments at the recommended ratese1
- Outcome
- microbial counte1
- Direction
- decreasee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Samples were collected randomly from the experimental farm before and after application of herbicide; on which cowpea was cultivated”
e1“The result reveals the following herbicide treatments at the recommended rates resulted in decrease in microbial count”
Claim · model-written summary
High herbicide concentration gave a much lower soil microbial count than the recommended rate and untreated soil.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- High concentration of herbicide treatmente2
- Outcome
- microbial counte2
- Direction
- much lowere2
- Comparator
- soil treated rate, recommended herbicides and none treated soile2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Samples were collected randomly from the experimental farm before and after application of herbicide; on which cowpea was cultivated”
e2“High concentration of herbicide treatment resulted in a much lower microbial count compared to soil treated rate, recommended herbicides and none treated soil”
Claim · model-written summary
Bacillus and Pseudomonas were the most frequently isolated bacteria from herbicide-treated soil.
- Taxon
- cowpeaVigna unguiculatae0
- Outcome
- most frequently isolated bacteriae3
- Qualifier
- Bacillus and Pseudomonas sp.e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Samples were collected randomly from the experimental farm before and after application of herbicide; on which cowpea was cultivated”
e3“The most frequently isolated bacteria from herbicide treated soil are Bacillus and Pseudomonas sp.”
Claim · model-written summary
Aspergillus, Rhizopus and Penicillium were the most frequently isolated fungi from treated soil.
- Taxon
- cowpeaVigna unguiculatae0
- Outcome
- most frequently isolated fungie4
- Qualifier
- Aspergillus, Rhizopus and Penicillium sp.e4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Samples were collected randomly from the experimental farm before and after application of herbicide; on which cowpea was cultivated”
e4“Aspergillus, Rhizopus and Penicillium sp. were the most frequently isolated fungi from treated soils”
Claim · model-written summary
Cowpea yield was highest at the above-recommended herbicide rate and lowest in the control.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- herbicide at above recommended ratee5
- Outcome
- Cowpea yielde5
- Direction
- higheste5
- Comparator
- control sitee5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Samples were collected randomly from the experimental farm before and after application of herbicide; on which cowpea was cultivated”
e5“Cowpea yield was highest in site treated with herbicide at above recommended rate and lowest in the control site”
Claim · model-written summary
Herbicide had a significant effect on the soil microbial community.
- Taxon
- cowpeaVigna unguiculatae0
- Treatment
- herbicidee6
- Outcome
- soil microbial communitye6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Samples were collected randomly from the experimental farm before and after application of herbicide; on which cowpea was cultivated”
e6“herbicide is an integral part of farming, although it has a significant effect on soil microbial community”
The same questions in other papers
herbicide · yield · Vigna unguiculata (cowpea)Positive and negative results
44 papers in the same direction as this paper · 8 in the opposite direction
- negative
- negative
- negative
49 papers more in this group
See all 53 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.