ORIGINAL ARTICLE
Physicochemical properties of soil and rates of saflufenacil in emergence and growth of soybean
1
Plant Protection Department, Federal University of Pelotas, Av. Eliseu Maciel, 96160-000, Capão do Leão, Rio Grande do Sul, Brazil
2
Plant Protection Department, Federal University of Santa Maria, Av. Roraima, 1000, 97105-900, Santa Maria, Rio Grande do Sul, Brazil
A - Research concept and design; B - Collection and/or assembly of data; C - Data analysis and interpretation; D - Writing the article; E - Critical revision of the article; F - Final approval of article
Submission date: 2020-11-13
Acceptance date: 2021-01-20
Online publication date: 2021-06-19
Corresponding author
Geovana Facco Barbieri
Plant Protection Department, Federal University of Pelotas, Campo universitário s/n, 96010-900, Pelotas, Brazil
Plant Protection Department, Federal University of Pelotas, Campo universitário s/n, 96010-900, Pelotas, Brazil
Journal of Plant Protection Research 2021;61(2):176-182
KEYWORDS
TOPICS
ABSTRACT
The study of herbicide dynamics in the soil and their interaction with the components
of the environment makes it possible to ensure the selectivity of crops and the agronomical
efficiency. The aim of this research was to evaluate the influence of soil physicochemical
properties on the emergence and growth of soybean, with pre-emergence application
of various saflufenacil rates. An experiment was carried out in a greenhouse with
a completely randomized design, testing different soil types containing “Erechim”, “Santa
Maria” and “Eldorado do Sul”, at different saflufenacil rates: 0, 12.5, 25, 50, 100, 200,
400 g a.i. · ha–1. The application was performed 1 day after soybean sowing, and analyzed
variables were: the phytotoxicity emergence of seedlings, dry mass and height of the soybean.
The saflufenacil effective dose of 50% response in soybean (ED50) and the characteristics
of the soils showed that the soil contained clay and sand which were the components
most related to the saflufenacil availability to the plants. A lower ED50 by phytotoxicity to
the soybean was found in soil with lower and greater content of clay and sand, respectively.
The physicochemical properties of soil influenced the saflufenacil activity, having greater
potential of injury to soybean in the soil from Eldorado do Sul, due to its clay and sand
content.
CONFLICT OF INTEREST
The authors have declared that no conflict of interests exist.
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| eISSN: | 1899-007X |
| ISSN: | 1427-4345 |
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