Mixture of herbicides in peanut crops
The mixture of herbicides in agricultural crops is a weed management strategy that has beenemployed for many years throughout the country. However, it is a practice that was recentlyregulated, so it has often been employed indiscriminately and inappropriately. Therefore, this work aimed to evaluate...
| Autores: | , , , |
|---|---|
| Tipo de documento: | artigo |
| Estado: | Versão publicada |
| Data de publicação: | 2021 |
| País: | Brasil |
| Recursos: | Instituto Pros |
| Repositório: | South American Sciences |
| Idioma: | português |
| OAI Identifier: | oai:ojs2.southamericansciences.com.br:article/154 |
| Acesso em linha: | https://www.southamericansciences.com.br/index.php/sas/article/view/154 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Arachis hypogaea L.; controle químico; intoxicação; manejo; produtividade.. Arachis hypogaea L.; chemical control; intoxication; management; productivity. Arachis hypogaea L.; control químico; intoxicación; administración; productividad.. |
| Resumo: | The mixture of herbicides in agricultural crops is a weed management strategy that has beenemployed for many years throughout the country. However, it is a practice that was recentlyregulated, so it has often been employed indiscriminately and inappropriately. Therefore, this work aimed to evaluate the selectivity of herbicide mixtures applied in pre-emergence on thepeanut crop, cultivate Granoleic. The experimental design was in randomized blocks, with 13mixtures of herbicides applied in pre-emergence and a control (without chemical treatment),with 4 repetitions. Throughout the experimental period, weekly evaluations of peanutintoxication were performed from 7 to 84 days after application of the mixtures. At the end ofthe peanut cycle (140 days after sowing) pod productivity was determined and the dataextrapolated to kg ha-1. The results were submitted to variance analysis using the F test, andthe means were compared using the Tukey test at 5% probability. Among the treatments andparameters evaluated, it was found that the mixtures of flumioxazin + chlorimuron,sulfentrazone + imazetapyr and sulfentrazone + clomazone provided significant reductions ofall parameters. In possession of the results raised in this study, it was concluded that themixture of the herbicides diclosulan + s-metolachlor, diclosulan + trifluralin, diclosulan +imazetapir, flumioxazin + imazetapir and flumioxazin + imazapic is selective for peanut crop. Atthe doses, soil type and edaphoclimatic conditions studied, the mixtures of flumioxazin +trifluralin. flumioxazin + s-metolachlor, fomesafen + s-metolachlor, diclosulan + imazapic,imazetapir + flumioxazin, sulfentrazone + imazetapir, flumioxazin + chlorimuron andsulfentrazone + clomazone are not selective for the crop, and may cause losses of up to 56% inpeanut productivity. |
|---|