Please use this identifier to cite or link to this item:
http://dspace.mediu.edu.my:8181/xmlui/handle/123456789/3783| Title: | Comparison of microscopic method and computational program for pesticide deposition evaluation of spraying |
| Keywords: | agricultural chemicals aerial application application methods density volume |
| Issue Date: | 30-May-2013 |
| Publisher: | Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
| Description: | 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, 21.9±7.5 droplets/cm² and 21.9±9.2 L/ha. Graphs of the spatial distribution of droplet density and deposited spray volume on the area were produced by the computer program. |
| URI: | http://koha.mediu.edu.my:8181/jspui/handle/123456789/3783 |
| Other Identifiers: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2002000400010 http://www.doaj.org/doaj?func=openurl&genre=article&issn=0100204X&date=2002&volume=37&issue=4&spage=493 |
| Appears in Collections: | Agriculture and Food Sciences |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.