Abstract
Abstract. The objective of this study was to evaluate the potential of leaching 2,4-D in Red Latosol using soybean as a bioindicator plant, to verify the residual effect of the distribution of the herbicide in the soil on the initial development of the plant. The experimental design is a 5 × 11 × 2 triple factorial model, with 5 treatments of water slides (20, 40, 60, 80 and 100 mm) applied by a rainfall simulator. The depth of 11 layers (0-5, 5 -10, 10-15, 15-20, 20-25, 25-30, 30-35, 35-40, 40-45, 45-50, and 50-55 cm) were mounted on soil columns using two groups (in the absence and the presence of the 2,4-D herbicide dimethylamine by application at a dose of 1500 g a.i. ha -1 ), with four replicates, making 440 experimental plots. The residual effect of the herbicide was evaluated by seedling emergence speed index, total seedling emergence percentage and plant height evaluation. The results demonstrated that the effect of 2,4-D herbicide distribution along the soil profile induces increases in the initial development of soybean when compared to the control treatment. However, the residual 2,4-D in the soil decreases with 80- and 100-mm sheets that have greater herbicide leaching potential beyond the depth range of the soil columns. Keywords: Residual effect, Seedling emergence, Glycine max.
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Claims 2
Claim · model-written summary
Residual 2,4-D along the soil profile increased initial soybean development versus control.
- Taxon
- soybean
Glycine maxe0 - Treatment
- 2,4-D herbicide distribution along the soil profilee0
- Outcome
- initial development of soybeane0
- Direction
- increasese0
- Comparator
- control treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results demonstrated that the effect of 2,4-D herbicide distribution along the soil profile induces increases in the initial development of soybean when compared to the control treatment.”
Claim · model-written summary
Residual soil 2,4-D decreased with 80- and 100-mm water sheets, which had greater leaching potential beyond the columns.
- Taxon
- SoybeanGlycine maxt0
- Treatment
- 80- and 100-mm sheetse0
- Outcome
- residual 2,4-D in the soile0
- Direction
- decreasese0
- Qualifier
- greater herbicide leaching potential beyond the depth range of the soil columnse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean”
e0“the residual 2,4-D in the soil decreases with 80- and 100-mm sheets that have greater herbicide leaching potential beyond the depth range of the soil columns”
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