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Registros recuperados: 10 | |
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Chaim,Aldemir; Pessoa,Maria Conceição Peres Young; Camargo Neto,João; Hermes,Luiz Carlos. |
The main objective of this work was to compare two methods to estimate the deposition of pesticide applied by aerial spraying. Hundred and fifty pieces of water sensitive paper were distributed over an area of 50 m length by 75 m width for sampling droplets sprayed by an aircraft calibrated to apply a spray volume of 32 L/ha. The samples were analysed by visual microscopic method using NG 2 Porton graticule and by an image analyser computer program. The results reached by visual microscopic method were the following: volume median diameter, 398±62 mum; number median diameter, 159±22 mum; droplet density, 22.5±7.0 droplets/cm² and estimated deposited volume, 22.2±9.4 L/ha. The respective ones reached with the computer program were: 402±58 mum, 161±32 mum,... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agricultural chemicals; Aerial application; Application methods; Density; Volume. |
Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2002000400010 |
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Registros recuperados: 10 | |
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