Abstract
Field studies were conducted to determine the effect of metam sodium and S -metolachlor applied through drip irrigation on yellow nutsedge, common purslane, bell pepper, and tomato (injury and yield) in plasticulture. Treatments consisted of weed-free, weedy, S -metolachlor alone at 0.85 kg ha -1 , methyl bromide, metam sodium (43, 86, 176, and 358 kg ai ha –1 ) alone, and metam sodium (43, 86, 176, and 358 kg ai ha –1 ) followed by S -metolachlor at 0.85 kg ha –1 . Metam sodium and S -metolachlor was applied preplant 2 wk before and 2 wk after transplanting (WAT) through drip irrigation, respectively. No injury was observed to bell pepper and tomato from metam sodium alone, or metam sodium fb S -metolachlor treatments. With the exception of yellow nutsedge density 15 WAT in bell pepper, herbicide program did not influence yellow nutsedge and common purslane density at 4 and 6 WAT and bell pepper and tomato yield. At 15 WAT, yellow nutsedge density was lower in treatments that received metam sodium fb S -metolachlor compared to those treatments that only received metam sodium. Drip-applied metam sodium at 176 and 358 kg ha –1 in both bell pepper and tomato provided similar control of common purslane, and yellow nutsedge, produced comparable yields, and failed to elicit any negative crop growth responses when compared to MeBr. In conclusion, metam sodium at 176 and 358 kg ha –1 fb S -metolachlor 0.85 kg ha –1 is an effective MeBr alternative for season long weed control in plasticulture bell pepper and tomato.
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Claims 12
Claim · model-written summary
No injury was observed to bell pepper from metam sodium alone or metam sodium followed by S-metolachlor.
Not reportedComparatorDirection
Verbatim
e1“No injury was observed to bell pepper and tomato from metam sodium alone, or metam sodium fb S-metolachlor treatments”
Claim · model-written summary
No injury was observed to tomato from metam sodium alone or metam sodium followed by S-metolachlor.
- Taxon
- tomato
Solanum lycopersicume1 - Treatment
- metam sodium alonee1
- Outcome
- injurye1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e1“No injury was observed to bell pepper and tomato from metam sodium alone, or metam sodium fb S-metolachlor treatments”
Claim · model-written summary
The herbicide program did not influence bell pepper yield.
Not reportedComparator
Verbatim
e2“With the exception of yellow nutsedge density 15 WAT in bell pepper, herbicide program did not influence yellow nutsedge and common purslane density at 4 and 6 WAT and bell pepper and tomato yield”
Claim · model-written summary
The herbicide program did not influence tomato yield.
- Taxon
- tomato
Solanum lycopersicume2 - Treatment
- herbicide programe2
- Outcome
- yielde2
- Direction
- did not influencee2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e2“With the exception of yellow nutsedge density 15 WAT in bell pepper, herbicide program did not influence yellow nutsedge and common purslane density at 4 and 6 WAT and bell pepper and tomato yield”
Claim · model-written summary
The herbicide program did not influence yellow nutsedge and common purslane density in bell pepper at 4 and 6 WAT.
- Taxon
- bell peppere2
- Treatment
- herbicide programe2
- Interactor
- yellow nutsedgee2weed
- Second interactor
- common purslanee2weed
- Outcome
- densitye2
- Direction
- did not influencee2
- Qualifier
- at 4 and 6 WATe2
Not reportedComparator
Verbatim
e2“With the exception of yellow nutsedge density 15 WAT in bell pepper, herbicide program did not influence yellow nutsedge and common purslane density at 4 and 6 WAT and bell pepper and tomato yield”
Claim · model-written summary
At 15 WAT, yellow nutsedge density in Bell Pepper was lower with metam sodium followed by S-metolachlor than with metam sodium alone.
Verbatim
t0“Bell Pepper”
e3“At 15 WAT, yellow nutsedge density was lower in treatments that received metam sodium fb S-metolachlor compared to those treatments that only received metam sodium”
Claim · model-written summary
Drip-applied metam sodium gave similar control of common purslane and yellow nutsedge in bell pepper compared with methyl bromide.
Verbatim
e4“Drip-applied metam sodium at 176 and 358 kg ha –1 in both bell pepper and tomato provided similar control of common purslane, and yellow nutsedge, produced comparable yields, and failed to elicit any negative crop growth responses when compared to MeBr”
Claim · model-written summary
Drip-applied metam sodium gave similar control of common purslane and yellow nutsedge in tomato compared with methyl bromide.
- Taxon
- tomato
Solanum lycopersicume4 - Treatment
- metam sodiume4
- Interactor
- common purslanee4weed
- Second interactor
- yellow nutsedgee4weed
- Outcome
- control of common purslanee4
- Direction
- similare4
- Comparator
- MeBre4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e4“Drip-applied metam sodium at 176 and 358 kg ha –1 in both bell pepper and tomato provided similar control of common purslane, and yellow nutsedge, produced comparable yields, and failed to elicit any negative crop growth responses when compared to MeBr”
Claim · model-written summary
Drip-applied metam sodium gave comparable yields of bell pepper compared with methyl bromide.
Verbatim
e4“Drip-applied metam sodium at 176 and 358 kg ha –1 in both bell pepper and tomato provided similar control of common purslane, and yellow nutsedge, produced comparable yields, and failed to elicit any negative crop growth responses when compared to MeBr”
Claim · model-written summary
Drip-applied metam sodium gave comparable yields of tomato compared with methyl bromide.
- Taxon
- tomato
Solanum lycopersicume4 - Treatment
- metam sodiume4
- Outcome
- yieldse4
- Direction
- comparablee4
- Comparator
- MeBre4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e4“Drip-applied metam sodium at 176 and 358 kg ha –1 in both bell pepper and tomato provided similar control of common purslane, and yellow nutsedge, produced comparable yields, and failed to elicit any negative crop growth responses when compared to MeBr”
Claim · model-written summary
Drip-applied metam sodium failed to elicit negative growth responses in bell pepper compared with methyl bromide.
Verbatim
e4“Drip-applied metam sodium at 176 and 358 kg ha –1 in both bell pepper and tomato provided similar control of common purslane, and yellow nutsedge, produced comparable yields, and failed to elicit any negative crop growth responses when compared to MeBr”
Claim · model-written summary
Drip-applied metam sodium failed to elicit negative growth responses in tomato compared with methyl bromide.
- Taxon
- tomato
Solanum lycopersicume4 - Treatment
- metam sodiume4
- Outcome
- negative crop growth responsese4
- Direction
- failed to elicite4
- Comparator
- MeBre4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e4“Drip-applied metam sodium at 176 and 358 kg ha –1 in both bell pepper and tomato provided similar control of common purslane, and yellow nutsedge, produced comparable yields, and failed to elicit any negative crop growth responses when compared to MeBr”
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See all 45 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.