Abstract
Two field experiments were carried out at Sids Agricultural Research Station, Agricultural Research Center, Egypt during 2004 and 2005 summer seasons to study the effect of three possible integration between seedbed preparation by mechanical tillage i.e. mouldboard plow + rotary plow, chisel plow three passes + rotary plow, chisel plow two passes ( farmer treatment), intercropping sunflower with soybean, sole sunflower and weed control treatments (pendimethalin at 875 g/fed., fluazifop butyl at 62.5 g/fed., hand-hoeing twice and unweeded check) on fresh weight of weeds, yield and its components of primary crop (sunflower) and second crop soybean which intercropped with sunflower in natural infested soil by weeds. In both seasons, the main findings mentioned seedbed preparation by mouldboard plow + rotary plow and chisel plow + rotary; sunflower and soybean intercropping and weed control treatments (Pendimethalin hand-hoeing twice and fluazifop butyl) reduced weed biomass ranged from (17 - 52), (34 - 76) and (20 – 96%), respectively. The previous three factors increased seed yield ranged from (2 – 18), (6 – 8) and (29 – 63%), as well as, they gave the highest profitability ranged from (16 – 56), (36 – 60) and (25 – 76%), respectively. Different possible interactions between the three studied factors referred that the use of two or three combination of them increased the potential of reducing weed biomass and increasing sunflower productivity and consequently increased the profitability as compared with any single. Thus tillage systems, intercropping and weed control treatments can be used as compatible tactics for weed management with improving sunflower production.
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Claims 13
Claim · model-written summary
The reported seedbed preparations reduced weed biomass by 17–52%.
- Taxon
- SUNFLOWER
Helianthus annuust0 - Treatment
- seedbed preparation by mouldboard plow + rotary plow and chisel plow + rotarye0
- Outcome
- weed biomasse0
- Direction
- reducede0
- Value
- 17 - 52e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“seedbed preparation by mouldboard plow + rotary plow and chisel plow + rotary; sunflower and soybean intercropping and weed control treatments (Pendimethalin hand-hoeing twice and fluazifop butyl) reduced weed biomass ranged from (17 - 52), (34 - 76) and (20 – 96%), respectively”
t0“SUNFLOWER PRODUCTIVITY”
Claim · model-written summary
Sunflower and soybean intercropping reduced weed biomass by 34–76%.
- Taxon
- sunflower
Helianthus annuuse0 - Treatment
- sunflower and soybean intercroppinge0
- Outcome
- weed biomasse0
- Direction
- reducede0
- Value
- 34 - 76e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“sunflower and soybean intercropping and weed control treatments (Pendimethalin hand-hoeing twice and fluazifop butyl) reduced weed biomass ranged from (17 - 52), (34 - 76) and (20 – 96%), respectively”
Claim · model-written summary
The weed control treatments reduced weed biomass by 20–96%.
- Taxon
- SUNFLOWER
Helianthus annuust0 - Treatment
- weed control treatments (Pendimethalin hand-hoeing twice and fluazifop butyl)e0
- Outcome
- weed biomasse0
- Direction
- reducede0
- Value
- 20 – 96%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“weed control treatments (Pendimethalin hand-hoeing twice and fluazifop butyl) reduced weed biomass ranged from (17 - 52), (34 - 76) and (20 – 96%), respectively”
t0“SUNFLOWER PRODUCTIVITY”
Claim · model-written summary
Seedbed preparation increased seed yield by 2–18%.
- Taxon
- SUNFLOWER
Helianthus annuust0 - Treatment
- seedbed preparation by mouldboard plow + rotary plow and chisel plow + rotarye1
- Outcome
- seed yielde0
- Direction
- increasede0
- Value
- 2 – 18e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The previous three factors increased seed yield ranged from (2 – 18), (6 – 8) and (29 – 63%)”
e1“seedbed preparation by mouldboard plow + rotary plow and chisel plow + rotary”
t0“SUNFLOWER PRODUCTIVITY”
Claim · model-written summary
Intercropping increased seed yield by 6–8%.
- Taxon
- sunflower
Helianthus annuuse1 - Treatment
- sunflower and soybean intercroppinge1
- Outcome
- seed yielde0
- Direction
- increasede0
- Value
- 6 – 8e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The previous three factors increased seed yield ranged from (2 – 18), (6 – 8) and (29 – 63%)”
e1“sunflower and soybean intercropping”
Claim · model-written summary
Weed control treatments increased seed yield by 29–63%.
- Taxon
- SUNFLOWER
Helianthus annuust0 - Treatment
- weed control treatments (Pendimethalin hand-hoeing twice and fluazifop butyl)e1
- Outcome
- seed yielde0
- Direction
- increasede0
- Value
- 29 – 63%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The previous three factors increased seed yield ranged from (2 – 18), (6 – 8) and (29 – 63%)”
e1“weed control treatments (Pendimethalin hand-hoeing twice and fluazifop butyl)”
t0“SUNFLOWER PRODUCTIVITY”
Claim · model-written summary
Seedbed preparation gave the highest profitability, ranging from 16–56%.
- Taxon
- SUNFLOWER
Helianthus annuust0 - Treatment
- seedbed preparation by mouldboard plow + rotary plow and chisel plow + rotarye1
- Outcome
- profitabilitye0
- Direction
- higheste0
- Value
- 16 – 56e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“they gave the highest profitability ranged from (16 – 56), (36 – 60) and (25 – 76%), respectively”
e1“seedbed preparation by mouldboard plow + rotary plow and chisel plow + rotary”
t0“SUNFLOWER PRODUCTIVITY”
Claim · model-written summary
Intercropping gave the highest profitability, ranging from 36–60%.
- Taxon
- sunflower
Helianthus annuuse1 - Treatment
- sunflower and soybean intercroppinge1
- Outcome
- profitabilitye0
- Direction
- higheste0
- Value
- 36 – 60e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“they gave the highest profitability ranged from (16 – 56), (36 – 60) and (25 – 76%), respectively”
e1“sunflower and soybean intercropping”
Claim · model-written summary
Weed control treatments gave the highest profitability, ranging from 25–76%.
- Taxon
- SUNFLOWER
Helianthus annuust0 - Treatment
- weed control treatments (Pendimethalin hand-hoeing twice and fluazifop butyl)e1
- Outcome
- profitabilitye0
- Direction
- higheste0
- Value
- 25 – 76%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“they gave the highest profitability ranged from (16 – 56), (36 – 60) and (25 – 76%), respectively”
e1“weed control treatments (Pendimethalin hand-hoeing twice and fluazifop butyl)”
t0“SUNFLOWER PRODUCTIVITY”
Claim · model-written summary
Combining two or three factors reduced weed biomass more than any single factor.
- Taxon
- sunflower
Helianthus annuuse0 - Treatment
- two or three combination of theme0
- Outcome
- weed biomasse0
- Direction
- reducinge0
- Comparator
- any singlee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the use of two or three combination of them increased the potential of reducing weed biomass and increasing sunflower productivity and consequently increased the profitability as compared with any single”
Claim · model-written summary
Combining two or three factors increased sunflower productivity relative to any single factor.
- Taxon
- sunflower
Helianthus annuuse0 - Treatment
- two or three combination of theme0
- Outcome
- sunflower productivitye0
- Direction
- increasinge0
- Comparator
- any singlee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the use of two or three combination of them increased the potential of reducing weed biomass and increasing sunflower productivity and consequently increased the profitability as compared with any single”
Claim · model-written summary
Combining two or three factors increased profitability relative to any single factor.
- Taxon
- sunflower
Helianthus annuuse0 - Treatment
- two or three combination of theme0
- Outcome
- profitabilitye0
- Direction
- increasede0
- Comparator
- any singlee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“the use of two or three combination of them increased the potential of reducing weed biomass and increasing sunflower productivity and consequently increased the profitability as compared with any single”
Claim · model-written summary
The authors recommend combining tillage, intercropping and weed control to manage weeds and improve sunflower production.
- Taxon
- sunflower
Helianthus annuuse0 - Treatment
- tillage systems, intercropping and weed control treatmentse0
- Outcome
- weed management with improving sunflower productione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“tillage systems, intercropping and weed control treatments can be used as compatible tactics for weed management with improving sunflower production”
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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.