Normalized difference vegetation index for desiccation evaluation with glyphosate + 2,4-D in magnetized spray solution
| Autor: | Jair Rocha do Prado, G. S. M. Mundim, Cleyton Batista de Alvarenga, Renan Zampiroli, Paula Cristina Natalino Rinaldi, R. B. A. Gallis, Edson Aparecido dos Santos |
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| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
QH301-705.5 NDVI Field experiment Science control evaluation Weed Control 010607 zoology Glycine Soil science Biology application technology 01 natural sciences Normalized Difference Vegetation Index Magnetization chemistry.chemical_compound remote sensing Brachiaria decumbens Biology (General) Desiccation Herbicides 010604 marine biology & hydrobiology Botany Weed control biology.organism_classification equipment and supplies Brachiaria chemistry QL1-991 Glyphosate QK1-989 Laboratory experiment 2 4-Dichlorophenoxyacetic Acid General Agricultural and Biological Sciences Zoology human activities |
| Zdroj: | Brazilian Journal of Biology v.83 2023 Brazilian Journal of Biology Instituto Internacional de Ecologia (IIE) instacron:IIE Brazilian Journal of Biology, Vol 83 (2021) |
| ISSN: | 1678-4375 |
| Popis: | Water magnetization and geoprocessing are increasingly utilized tools in weed management. Our objective was to study the influence of water magnetization on herbicide efficiency and to verify whether there is a relationship between control scores and the normalized difference vegetation index (NDVI). In the laboratory experiment, water was subjected to magnetization and evaluated with respect to four characteristics. In the field experiment, plots of Brachiaria grass were subjected to treatments in a factorial scheme (6 × 2 + 1). Six herbicidal factors (doses of glyphosate and glyphosate + 2,4-D) and the magnetization or absence of magnetization of the spray solution were evaluated and compared against the control treatment (without spraying). Weed control assessments were carried out six times. Images were obtained using an embedded multispectral camera to determine the NDVI values. Data related to water characteristics were analyzed using the t test. Weed control and NDVI data were subjected to analysis of variance and are presented in regression graphs. Dispersion analysis of NDVI data was performed according to the control scores. The magnetization process decreased the pH of the water and increased the surface tension, but it did not influence the control scores or the NDVI. As the glyphosate dose was increased, the control scores were higher and the NDVI values were lower. Magnetized water did not affect the biological efficiency of the herbicides, and there was a strong correlation between the control scores and the NDVI values. |
| Databáze: | OpenAIRE |
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