Abstract
Objective to evaluate the leaching of the hexazinone and admixed with diuron, in soil of contrasting textures, in soil columns under different rainfall. The following soils were used: Red Latosol LV, of clay texture and Quartzarenic Neosol NQ, sandy texture. The experimental units were constituted by PVC columns filled with soil, at rates of hexazinone (LV 375 g ha-1 and NQ 225 g ha-1) and hexazinone + diuron (LV 396 + 1,404 g ha-1 and NQ 264 + 936 g ha-1). The factorial 6 x 6 in randomized block design, with three replications was adopted. Factor A evaluated the precipitation of 0, 20, 40, 60, 80, and 100 mm; factor B analyzed the depths (0-5, 5-10, 10-15, 15-20, 20-25 and 25-30 cm) column. Posteriorly the rain simulation the columns were longitudinally opened and along these were sown Cucumis sativus. Independent of soil texture, the hexazinone and mixture hexazinone + diuron did not exceed 10-15 cm layer of soil, the layer of 0 mm. The hexazinone and diuron + hexazinone mixture showed phytotoxicity of species bioindicator in the layer of 20-25 cm in LV, and reaching up to 25-30 cm in NQ, the greatest layer simulated. It was concluded that there was no difference in leaching potential of hexazinone when mixture with diuron in soils with distinct textures, however the clay textural composition, organic matter content of soil and rainfall influenced the leaching.
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Claims 6
Claim · model-written summary
With zero simulated rain, hexazinone did not exceed the 10-15 cm soil layer in either texture.
- Taxon
- Cucumis sativus
Cucumis sativuse1 - Outcome
- hexazinonee0
- Direction
- did not exceede0
- Value
- 10-15 cme0
- Qualifier
- 0 mme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Independent of soil texture, the hexazinone and mixture hexazinone + diuron did not exceed 10-15 cm layer of soil, the layer of 0 mm”
e1“along these were sown Cucumis sativus”
Claim · model-written summary
With zero simulated rain, the hexazinone plus diuron mixture did not exceed the 10-15 cm layer in either texture.
- Taxon
- Cucumis sativusCucumis sativuse1
- Outcome
- mixture hexazinone + diurone0
- Direction
- did not exceede0
- Value
- 10-15 cme0
- Qualifier
- 0 mme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Independent of soil texture, the hexazinone and mixture hexazinone + diuron did not exceed 10-15 cm layer of soil, the layer of 0 mm”
e1“along these were sown Cucumis sativus”
Claim · model-written summary
Hexazinone caused cucumber phytotoxicity at 20-25 cm in LV and up to 25-30 cm in NQ.
- Taxon
- Cucumis sativusCucumis sativuse1
- Treatment
- hexazinonee0
- Outcome
- phytotoxicity of species bioindicatore0
- Qualifier
- 20-25 cm in LV, and reaching up to 25-30 cm in NQe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The hexazinone and diuron + hexazinone mixture showed phytotoxicity of species bioindicator in the layer of 20-25 cm in LV, and reaching up to 25-30 cm in NQ”
e1“along these were sown Cucumis sativus”
Claim · model-written summary
The diuron plus hexazinone mixture caused cucumber phytotoxicity at 20-25 cm in LV and up to 25-30 cm in NQ.
- Taxon
- Cucumis sativusCucumis sativuse1
- Treatment
- diuron + hexazinone mixturee0
- Outcome
- phytotoxicity of species bioindicatore0
- Qualifier
- 20-25 cm in LV, and reaching up to 25-30 cm in NQe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The hexazinone and diuron + hexazinone mixture showed phytotoxicity of species bioindicator in the layer of 20-25 cm in LV, and reaching up to 25-30 cm in NQ”
e1“along these were sown Cucumis sativus”
Claim · model-written summary
Hexazinone leaching potential did not differ when mixed with diuron.
- Taxon
- Cucumis sativusCucumis sativuse1
- Outcome
- leaching potential of hexazinonee0
- Direction
- no differencee0
- Comparator
- mixture with diurone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was no difference in leaching potential of hexazinone when mixture with diuron in soils with distinct textures”
e1“along these were sown Cucumis sativus”
Claim · model-written summary
Clay texture, soil organic matter and rainfall influenced leaching.
- Taxon
- Cucumis sativusCucumis sativuse1
- Outcome
- leachinge0
- Qualifier
- clay textural composition, organic matter content of soil and rainfalle0
- Setting
- soile0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the clay textural composition, organic matter content of soil and rainfall influenced the leaching”
e1“along these were sown Cucumis sativus”
The same questions in other papers
diuron · crop injury · Cucumis sativus (cucumber)Results agree
2 papers in the same direction as this paper
- negative
- negative
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.