Results 11 to 20 of about 1,476,129 (217)

POTENTIAL DRIFT AND INJURY OF HERBICIDES SPRAYED IN A WIND TUNNEL [PDF]

Engenharia Agrícola
The possibility of synthetic auxin applications in crops increases the risk of injury to sensitive plants. The aim of this study was to quantify the drift of herbicides sprayed in a wind tunnel and the injury in cotton plants. The experimental design was
Guilherme M. P. de Oliveira, Marco A. Gandolfo, Rone B. de Oliveira, Stella M. P. de Oliveira, Vinicius A. Martins   +4 more
doaj   +2 more sources

Control of Dalbulus maidis in maize crop with electrostatic spraying

Bioscience Journal, 2019
Among the pests that attack the maize, the maize leafhopper, which causes direct damages by sap-sucking and indirect ones, stands out as being a vector of pathogens and viruses, and can cause losses of up to 100% of the production.
Rodrigo Santos Marques, João Paulo Arantes Rodrigues da Cunha, Guilherme Sousa Alves, Thales Cassemiro Alves, Sérgio Macedo Silva, César Henrique Souza Zandonadi   +5 more
doaj   +1 more source

Assistência de ar e volumes de aplicação na deposição de calda e no controle do arroz vermelho (Oryza sativa L.) Air assistance and volume of application in spray deposition and in red rice control (Oryza sativa L.)

Engenharia Agrícola, 2007
O trabalho teve como objetivo avaliar o efeito da assistência de ar junto à barra pulverizadora e de três volumes de pulverização na dessecação e deposição da calda em arroz vermelho, sob cultivo de nabo forrageiro, em áreas de recuperação de várzeas ...
Leopoldo L. S. Vigano, Carlos G. Raetano
doaj   +1 more source

Efficiency of reduced volume spraying aimed to control the Leucoptera coffeella (Lepidoptera: lyonetiidae)

Bioscience Journal, 2016
The objective of the study was to evaluate the application efficiency with reduced volume from the prototype of a pneumatic spray nozzles aimed to control the coffee leaf miner (Leucoptera coffeella).
Olinto Lasmar, Marcelo da Costa Ferreira, Sergio Tadeu Decaro Junior, Gunther Fouquet   +3 more
doaj   +1 more source

USE OF REMOTELY PILOTED AIRCRAFTS FOR THE APPLICATION OF PLANT PROTECTION PRODUCTS [PDF]

Engenharia Agrícola, 2021
The use of remotely piloted aircrafts (RPAs) to apply plant protection products has grown a lot in agriculture worldwide. However, little research data are available regarding the efficiency and safety of this method, especially in Brazil.
João P. A. R. da Cunha, Cleyton B. de Alvarenga, Paula C. N. Rinaldi, Matheus G. Marques, Renan Zampiroli   +4 more
doaj   +1 more source

Response of common bean to Rhizobium reinoculation in topdressing

Revista Brasileira de Engenharia Agrícola e Ambiental, 2022
The response capacity of the bean to fix atmospheric nitrogen is questionable, mainly due to its inability to supply all the nitrogen in the flowering and grain filling phases when the crop needs it most. Thus, a new application of inoculant can keep the
Itamar R. Teixeira, Paulo R. Lopes, Westefann S. Sousa, Gisele C. da S. Teixeira   +3 more
doaj   +1 more source

Distribuição volumétrica e espectro de gotas de bicos hidráulicos de jato plano de faixa expandida XR11003 Volumetric distribution and spectrum of drops of hidraulic nozzles of plane jet of expanded strip XR11003

Engenharia Agrícola, 2008
O presente trabalho teve por objetivos avaliar o espectro de gotas e os perfis de distribuição volumétrica de um bico hidráulico de jato plano de faixa expandida, modelo XR11003.
Felipe T. da Camara, José L. Santos, Elias A. Silva, Marcelo da C. Ferreira   +3 more
doaj   +1 more source

Impact of Operational Parameters on Droplet Distribution Using an Unmanned Aerial Vehicle in a Papaya Orchard

Agronomy, 2023
Papaya production and export is increasingly expanding in the world market due to the nutritional importance of the fruit. Phytosanitary issues, labor shortages, and unevenness in land-based costal and motorized applications compromise crops, the ...
Luis Felipe Oliveira Ribeiro, Edney Leandro da Vitória, Gilson Geraldo Soprani Júnior, Pengchao Chen, Yubin Lan   +4 more
doaj   +1 more source

Pesticide application windows in the region of Uberlândia-MG, Brazil

Bioscience Journal, 2016
The success of the pesticide application is subject to meteorological conditions. The objective of this work was to determine the application windows suitable for carrying out the application of pesticides, using as parameters the analysis of historical ...
João Paulo Arantes Rodrigues da Cunha, Júlia Nunes Paniago Pereira, Lucas Andrade Barbosa, Cláudio Ricardo da Silva   +3 more
doaj   +1 more source

Efeito de pontas de pulverização na deposição e na dessecação em plantas de Brachiaria brizantha Nozzle effect on deposition and desiccation on Brachiaria brizantha plants

Planta Daninha, 2008
Objetivou-se com este trabalho avaliar a eficiência de pontas de pulverização com diferentes vazões e tamanhos de gotas na deposição e na dessecação de plantas de Brachiaria brizantha cv. Marandu, além da quantificação das perdas da calda de pulverização
N.V. Costa, A.C.P. Rodrigues, D. Martins, L.A. Cardoso, J.I.C. Silva   +4 more
doaj   +1 more source