ELECTROSTATIC SPRAYING EFFECT ON SPRAY DEPOSITION AND POWDERY MILDEW CONTROL IN SOYBEAN
ABSTRACT Electrostatic spray can bring benefits to the pesticide application such as the reduction of application rate and the increase of deposits on targets. Therefore, this study aimed to evaluate the effect of electrostatic spraying using lower application rates and different adjuvants on soybea...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Engenharia Agrícola
2019-12-01
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| Series: | Engenharia Agrícola |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000600721&tlng=en |
| _version_ | 1798015432353906688 |
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| author | Heli H. T. de Assunção Sérgio M. Silva Guilherme S. Alves Cesar H. S. Zandonadi João P. A. R. da Cunha |
| author_facet | Heli H. T. de Assunção Sérgio M. Silva Guilherme S. Alves Cesar H. S. Zandonadi João P. A. R. da Cunha |
| author_sort | Heli H. T. de Assunção |
| collection | DOAJ |
| description | ABSTRACT Electrostatic spray can bring benefits to the pesticide application such as the reduction of application rate and the increase of deposits on targets. Therefore, this study aimed to evaluate the effect of electrostatic spraying using lower application rates and different adjuvants on soybean spray deposition and chemical control of powdery mildew (Microsphaera diffusa Cooke & Peck). The field experiment was conducted in duplicate. A randomized complete block design with four replications in a 2 × 2 × 2 + 1 factorial scheme was used. The factors were two application rates, with and without droplet electrification, two spray solution compositions, and one additional treatment. Deposition on upper and lower leaves, spray loss to the soil, and powdery mildew control effectiveness were evaluated. The electrical conductivity of the spray solution and the charge/mass ratio induced in droplets were also evaluated. All treatments reduced the soybean powdery mildew severity. Electrostatic spraying responded positively to an increase in the electrical conductivity of the spray solution regarding the charge/mass ratio, but it did not increase spray deposition on the lower third of the canopy and did not influence spray loss to the soil, which was higher as the application rate increased. |
| first_indexed | 2024-04-11T15:34:25Z |
| format | Article |
| id | doaj.art-449facd9b3d54ffbadcd851012c7bdb4 |
| institution | Directory Open Access Journal |
| issn | 0100-6916 |
| language | English |
| last_indexed | 2024-04-11T15:34:25Z |
| publishDate | 2019-12-01 |
| publisher | Sociedade Brasileira de Engenharia Agrícola |
| record_format | Article |
| series | Engenharia Agrícola |
| spelling | doaj.art-449facd9b3d54ffbadcd851012c7bdb42022-12-22T04:16:03ZengSociedade Brasileira de Engenharia AgrícolaEngenharia Agrícola0100-69162019-12-0139672172810.1590/1809-4430-eng.agric.v39n6p721-728/2019ELECTROSTATIC SPRAYING EFFECT ON SPRAY DEPOSITION AND POWDERY MILDEW CONTROL IN SOYBEANHeli H. T. de Assunçãohttps://orcid.org/0000-0002-7575-1971Sérgio M. SilvaGuilherme S. AlvesCesar H. S. ZandonadiJoão P. A. R. da CunhaABSTRACT Electrostatic spray can bring benefits to the pesticide application such as the reduction of application rate and the increase of deposits on targets. Therefore, this study aimed to evaluate the effect of electrostatic spraying using lower application rates and different adjuvants on soybean spray deposition and chemical control of powdery mildew (Microsphaera diffusa Cooke & Peck). The field experiment was conducted in duplicate. A randomized complete block design with four replications in a 2 × 2 × 2 + 1 factorial scheme was used. The factors were two application rates, with and without droplet electrification, two spray solution compositions, and one additional treatment. Deposition on upper and lower leaves, spray loss to the soil, and powdery mildew control effectiveness were evaluated. The electrical conductivity of the spray solution and the charge/mass ratio induced in droplets were also evaluated. All treatments reduced the soybean powdery mildew severity. Electrostatic spraying responded positively to an increase in the electrical conductivity of the spray solution regarding the charge/mass ratio, but it did not increase spray deposition on the lower third of the canopy and did not influence spray loss to the soil, which was higher as the application rate increased.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000600721&tlng=enapplication ratedroplet electrificationapplication technologyMicrosphaera diffusa |
| spellingShingle | Heli H. T. de Assunção Sérgio M. Silva Guilherme S. Alves Cesar H. S. Zandonadi João P. A. R. da Cunha ELECTROSTATIC SPRAYING EFFECT ON SPRAY DEPOSITION AND POWDERY MILDEW CONTROL IN SOYBEAN Engenharia Agrícola application rate droplet electrification application technology Microsphaera diffusa |
| title | ELECTROSTATIC SPRAYING EFFECT ON SPRAY DEPOSITION AND POWDERY MILDEW CONTROL IN SOYBEAN |
| title_full | ELECTROSTATIC SPRAYING EFFECT ON SPRAY DEPOSITION AND POWDERY MILDEW CONTROL IN SOYBEAN |
| title_fullStr | ELECTROSTATIC SPRAYING EFFECT ON SPRAY DEPOSITION AND POWDERY MILDEW CONTROL IN SOYBEAN |
| title_full_unstemmed | ELECTROSTATIC SPRAYING EFFECT ON SPRAY DEPOSITION AND POWDERY MILDEW CONTROL IN SOYBEAN |
| title_short | ELECTROSTATIC SPRAYING EFFECT ON SPRAY DEPOSITION AND POWDERY MILDEW CONTROL IN SOYBEAN |
| title_sort | electrostatic spraying effect on spray deposition and powdery mildew control in soybean |
| topic | application rate droplet electrification application technology Microsphaera diffusa |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000600721&tlng=en |
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