Data/hora: 01/06/2024 22:28:41

Biblioteca(s): | Embrapa Unidades Centrais.
Data corrente: | 18/09/2014
Data da última atualização: | 02/06/2017
Autoria: | ALVES, G. S.; CUNHA, J. P. A. R. da.
Afiliação: | GUILHERME SOUSA ALVES, Universidade Federal de Uberlândia; JOÃO PAULO ARANTES RODRIGUES DA CUNHA, Universidade Federal de Uberlândia.
Título: | Field datga and prediction models of pesticide spray drift on coffee crop.
Ano de publicação: | 2014
Fonte/Imprenta: | Pesquisa Agropecuária Brasileira, Brasília, DF, v. 49, n. 8, p.622-629, ago. 2014.
Idioma: | Inglês
Notas: | Título em português: Dados de campo e modelos de estimação de deriva nas aplicações de agrotóxicos na cultura do café.
Conteúdo: | The objective of this work was to generate drift curves from pesticide applications on coffee plants and to compare them with two European drift?prediction models. The used methodology is based on the ISO 22866 standard. The experimental design was a randomized complete block with ten replicates in a 2x20 split?plot arrangement. The evaluated factors were: two types of nozzles (hollow cone with and without air induction) and 20 parallel distances to the crop line outside of the target area, spaced at 2.5 m. Blotting papers were used as a target and placed in each of the evaluated distances. The spray solution was composed of water+rhodamine B fluorescent tracer at a concentration of 100 mg L?1, for detection by fluorimetry. A spray volume of 400 L ha?1 was applied using a hydropneumatic sprayer. The air?induction nozzle reduces the drift up to 20m from the treated area. The application with the hollow cone nozzle results in 6.68% maximum drift in the nearest collector of the treated area. The German and Dutch models overestimate the drift at distances closest to the crop, although the Dutch model more closely approximates the drift curves generated by both spray nozzles.
Palavras-Chave: | Contaminação ambiental; Curvas de deriva; Drift curves; Environmental contamination; Ponta de pulverização; Pulverizador hidropneumático.
Thesagro: | Coffea Arábica.
Thesaurus Nal: | Nozzles.
Categoria do assunto: | --
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/item/108729/1/Field-data-and-prediction.pdf
Registro original: | Embrapa Unidades Centrais (AI-SEDE)
Exemplares: | AI-SEDE - (56741-1) - UPE - AP - PP - 630.72081 - P474 -  - DIS