Abstract
3 Abstract: Filed experiments were carried out at the Agricultural Research Site of Tehran Province, Varamin, Iran to study the effect of different tillage methods on weed populations in a tomato cropping system under arid conditions during 2007 and 2008 growing seasons. Tillage treatments were moldboard plow + two passes of disk harrow as conventional tillage (CT); one pass of disk harrow as minimum tillage (MT) and zero tillage activity as no-tillage (NT). Two indices of weed populations, i.e. number of weeds per square meter (NUMW) and dry mass of weeds per square meter (DRMW) were determined for different tillage treatments. Statistical results of study indicated that tillage methods significantly (P 0.05) affected both indices of weed populations. The lowest values of NUMW (16.6 m ) and DRMW (19.5 g m ) were recorded in the 22 CT treatment, while the highest values of NUMW (21.5 m ) and DRMW (29.0 g m ) were noted in the 22 NT treatment. Results also showed that tillage method affected both indices of weed populations in the order of CT < MT < NT. Therefore, tillage operations were beneficial and useful in reducing both indices of weed populations in the tomato cropping system.
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Claims 6
Claim · model-written summary
Conventional tillage gave the lowest weed number per square meter (NUMW) in tomato compared with no-tillage.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- CTe2
- Interactor
- weede1weed
- Outcome
- NUMWe2
- Direction
- loweste2
- Value
- 16.6 me2
- Comparator
- NTe3
- Setting
- Varamin, Irane0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Filed experiments were carried out at the Agricultural Research Site of Tehran Province, Varamin, Iran”
e1“tillage methods significantly (P 0.05) affected both indices of weed populations”
e2“The lowest values of NUMW (16.6 m ) and DRMW (19.5 g m ) were recorded in the 22 CT treatment”
e3“while the highest values of NUMW (21.5 m ) and DRMW (29.0 g m ) were noted in the 22 NT treatment”
t0“weed populations in a tomato cropping system”
Claim · model-written summary
Conventional tillage gave the lowest dry mass of weeds (DRMW) in tomato compared with no-tillage.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- CTe2
- Interactor
- weede1weed
- Outcome
- DRMWe2
- Direction
- loweste2
- Value
- 19.5 g me2
- Comparator
- NTe3
- Setting
- Varamin, Irane0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Filed experiments were carried out at the Agricultural Research Site of Tehran Province, Varamin, Iran”
e1“tillage methods significantly (P 0.05) affected both indices of weed populations”
e2“The lowest values of NUMW (16.6 m ) and DRMW (19.5 g m ) were recorded in the 22 CT treatment”
e3“while the highest values of NUMW (21.5 m ) and DRMW (29.0 g m ) were noted in the 22 NT treatment”
t0“weed populations in a tomato cropping system”
Claim · model-written summary
No-tillage gave the highest weed number per square meter (NUMW) in tomato.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- NTe3
- Interactor
- weedt0weed
- Outcome
- NUMWe3
- Direction
- higheste3
- Value
- 21.5 me3
- Comparator
- CTe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“The lowest values of NUMW (16.6 m ) and DRMW (19.5 g m ) were recorded in the 22 CT treatment”
e3“while the highest values of NUMW (21.5 m ) and DRMW (29.0 g m ) were noted in the 22 NT treatment”
t0“weed populations in a tomato cropping system”
Claim · model-written summary
No-tillage gave the highest dry mass of weeds (DRMW) in tomato.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- NTe3
- Interactor
- weedt0weed
- Outcome
- DRMWe3
- Direction
- higheste3
- Value
- 29.0 g me3
- Comparator
- CTe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“The lowest values of NUMW (16.6 m ) and DRMW (19.5 g m ) were recorded in the 22 CT treatment”
e3“while the highest values of NUMW (21.5 m ) and DRMW (29.0 g m ) were noted in the 22 NT treatment”
t0“weed populations in a tomato cropping system”
Claim · model-written summary
Tillage method affected both weed population indices in the order CT < MT < NT.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- tillage methode4
- Interactor
- weede4weed
- Outcome
- both indices of weed populationse4
- Direction
- in the order of CT < MT < NTe4
- Comparator
- MTe4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“tillage methods significantly (P 0.05) affected both indices of weed populations”
e4“Results also showed that tillage method affected both indices of weed populations in the order of CT < MT < NT”
t0“weed populations in a tomato cropping system”
Claim · model-written summary
Tillage operations are beneficial for reducing weed populations in tomato, according to the authors.
- Taxon
- tomatoSolanum lycopersicume5
- Interactor
- weede5weed
- Outcome
- reducing both indices of weed populationse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Therefore, tillage operations were beneficial and useful in reducing both indices of weed populations in the tomato cropping system”
The same questions in other papers
tillage · weed · Solanum lycopersicum (tomato)Positive and negative results
6 papers in the same direction as this paper · 4 in the opposite direction
- no effect
- negative
- negative
7 papers more in this group
See all 11 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.