Abstract
Field experiments were conducted to evaluate the effect of thiobencarb and oxadiargyl herbicides on rice (Oryza sativa L.) and their possible residual effects on spinach ( Spinacea oleracea L.) and lettuce ( Lactuca sativa L.) at Dashtnaz and Gharakhil Agricultural Research Stations, Iran. Treatments included thiobencarb at 3.16 and 6.33 kg a.i. ha -1 , oxadiargyl at 0.15 and 0.30 kg a.i. ha -1 and a non-treated control. After harvesting rice, trial plots were kept undisturbed until late September when spinach was seeded in half of each plot. In November lettuce was transplanted in another half of the plots. Soil residual oxadiargyl at 0.30 kg a.i. ha -1 stunted rice up to 31%, but this injury was transient and did not reduce yield. The adverse effect of oxadiargyl on rice was lower at Gharakhil possibly due to the greater binding by soil organic matter (OM). At Dashtnaz, spinach fresh yield was significantly affected by soil residues of oxadiargyl. Whereas lettuce fresh yield was significantly reduced in both thiobencarb and oxadiargyl treated plots. At Gharakhil, fresh yield of lettuce was not affected significantly. The experimental results revealed that soil characteristics, in particular OM content, are the main factors controlling the effect of thiobencarb and oxadiargyl residues. Furthermore, it could be concluded that oxadiargyl affected rice and spinach fresh yield greater than thiobencarb. Since no statistically significant differences were found in rice, spinach, and lettuce yield between the two applied doses of thiobencarb, from economical and environmental point of view, the lower thiobencarb dose is recommended to be used in paddy fields of northern Iran.
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Claims 11
Claim · model-written summary
Oxadiargyl residue at 0.30 kg a.i. ha -1 stunted rice by up to 31%.
- Taxon
- rice
Oryza sativae0 - Treatment
- oxadiargyl at 0.30 kg a.i. ha -1e0
- Outcome
- ricee0
- Direction
- stuntede0
- Value
- 31%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil residual oxadiargyl at 0.30 kg a.i. ha -1 stunted rice up to 31%”
Claim · model-written summary
This rice injury did not reduce yield.
- Taxon
- riceOryza sativae0
- Treatment
- oxadiargyl at 0.30 kg a.i. ha -1e0
- Outcome
- yielde0
- Direction
- did not reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soil residual oxadiargyl at 0.30 kg a.i. ha -1 stunted rice up to 31%, but this injury was transient and did not reduce yield.”
Claim · model-written summary
The adverse effect of oxadiargyl on rice was lower at Gharakhil.
- Taxon
- riceOryza sativae0
- Outcome
- adverse effect of oxadiargyl on ricee0
- Direction
- lowere0
- Setting
- Gharakhile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The adverse effect of oxadiargyl on rice was lower at Gharakhil”
Claim · model-written summary
At Dashtnaz spinach fresh yield was significantly affected by oxadiargyl residues.
- Taxon
- spinach
Spinacia oleraceae0 - Treatment
- soil residues of oxadiargyle0
- Outcome
- spinach fresh yielde0
- Setting
- Dashtnaze0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At Dashtnaz, spinach fresh yield was significantly affected by soil residues of oxadiargyl.”
Claim · model-written summary
Lettuce fresh yield was significantly reduced in thiobencarb treated plots.
- Taxon
- lettuce
Lactuca sativae0 - Treatment
- thiobencarbe0
- Outcome
- lettuce fresh yielde0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lettuce fresh yield was significantly reduced in both thiobencarb and oxadiargyl treated plots.”
Claim · model-written summary
Lettuce fresh yield was significantly reduced in oxadiargyl treated plots.
- Taxon
- lettuceLactuca sativae0
- Treatment
- oxadiargyle0
- Outcome
- lettuce fresh yielde0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“lettuce fresh yield was significantly reduced in both thiobencarb and oxadiargyl treated plots.”
Claim · model-written summary
At Gharakhil lettuce fresh yield was not significantly affected.
- Taxon
- lettuceLactuca sativae0
- Outcome
- fresh yield of lettucee0
- Direction
- not affectede0
- Setting
- Gharakhile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At Gharakhil, fresh yield of lettuce was not affected significantly.”
Claim · model-written summary
Soil organic matter content was identified as controlling herbicide residue effects.
Not reportedTaxon
Verbatim
e0“soil characteristics, in particular OM content, are the main factors controlling the effect of thiobencarb and oxadiargyl residues.”
Claim · model-written summary
Oxadiargyl affected rice and spinach fresh yield more than thiobencarb.
- Taxon
- rice and spinachSpinacia oleraceaOryza sativae0
- Outcome
- fresh yielde0
- Direction
- greatere0
- Comparator
- thiobencarbe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“oxadiargyl affected rice and spinach fresh yield greater than thiobencarb.”
Claim · model-written summary
Rice, spinach and lettuce yields did not differ significantly between the two thiobencarb doses.
- Taxon
- rice, spinach, and lettuceSpinacia oleraceaLactuca sativaOryza sativae0
- Treatment
- two applied doses of thiobencarbe0
- Outcome
- yielde0
- Direction
- no statistically significant differencese0
- Comparator
- two applied doses of thiobencarbe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“no statistically significant differences were found in rice, spinach, and lettuce yield between the two applied doses of thiobencarb”
Claim · model-written summary
The lower thiobencarb dose is recommended for paddy fields in northern Iran.
Not reportedTaxon
Verbatim
e0“the lower thiobencarb dose is recommended to be used in paddy fields of northern Iran.”
The same questions in other papers
Thiobencarb · yield · Oryza sativa (rice)Results differ
4 papers in the same direction as this paper · 19 reporting no difference from an alternative
- positive
- positive
- positive
20 papers more in this group
See all 24 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.