Data/hora: 07/06/2024 18:22:19

Biblioteca(s): | Embrapa Pecuária Sul.
Data corrente: | 21/11/2022
Data da última atualização: | 21/11/2022
Autoria: | MEROTTO JUNIOR, A.; GALLON, M.; TURRA, G. M.; PEREZ, N. B.; LAMEGO, F. P.; CUTTI, L.; MÜLLER, I.; ANGONESE, P. S.
Afiliação: | ALDO MEROTTO JUNIOR, Universidade Federal do Rio Grande do Sul; MATEUS GALLON, Universidade Federal do Rio Grande do Sul; GUILHERME M. TURRA, Universidade Federal do Rio Grande do Sul; NAYLOR BASTIANI PEREZ, CPPSUL; FABIANE PINTO LAMEGO, CPPSUL; LUAN CUTTI, Universidade Federal do Rio Grande do Sul; INDIANARA MÜLLER, Universidade Federal do Rio Grande do Sul; PAULA S. ANGONESE, Universidade Federal do Rio Grande do Sul.
Título: | Use of a wiper applicator for the control of the invasive species Eragrostis plana with glyphosate salts.
Ano de publicação: | 2022
Fonte/Imprenta: | Advances in Weed Science, v. 40, e0202200118, 2022.
DOI: | 10.51694/AdvWeedSci/2022;40:00020
Idioma: | Inglês
Conteúdo: | Abstract: Background: Eragrostis plana is an invasive plant in native grassland areas associated with degradation of the Pampa biome. Selective control of E. plana is difficult due to its similarity to other grassland species. There is a lack of information about E. plana control using selective herbicide application equipment. Objective: The present study aimed to evaluate the efficacy of a pressurize rope wick applicator for controlling the invasive plant E. plana as function of different salts of glyphosate, application volumes, and year seasons. Methods: The studies were carried out under field conditions and repeated. The first study evaluated glyphosate salts of isopropylamine, dimethylamine, monoammonium, diammonium, and potassium at doses of 720 and 1440 g ha-1 and clethodim at 60 and 120 g ha-1. The second study assessed application volumes of 8, 24, 40, and 56 L ha-1 using isopropylamine and potassium salts of glyphosate. Results: Glyphosate applied in summer was more effective at controlling E. plana, with less regrowth than glyphosate application in winter. The glyphosate diammonium was more effective at controlling E. plana than isopropylamine, dimethylamine, monoammonium, or potassium salt formulations at 1440 g ha-1. Application volume of glyphosate between 8 and 40 L ha-1 provided similar control of E. plana and pasture selectivity. Conclusions: Glyphosate applied with a rope wick selective applicator was effective in controlling E. plana clumps and was selective to grassland. The control efficacy varied as a function of glyphosate salts and year season, but not due to application volume of 8 and 40 L ha-1.
Thesagro: | Capim Annoni; Erva Daninha; Pastagem.
Categoria do assunto: | F Plantas e Produtos de Origem Vegetal
Registro original: | Embrapa Pecuária Sul (CPPSUL)
Exemplares: | CPPSUL - (14934-1) - UPC - AP - DD -  -  -  - DIS