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Abstrakty
The paper presents the method of quantitative and qualitative evaluation of spray application based on deposit and coverage measurements on artificial targets. This relatively simple and fast method is proposed for small scale comparative field experiments with air-assisted orchard sprayers. Biological efficacy, being very important for the grower, is not enough informative method of evaluation of spraying technique from the cognitive point of view. Therefore fluorescent dye and filter paper as artificial targets was proposed. Water Sensitive Papers (WSP) are the most common artificial targets for spray coverage evaluation. Spray coverage expressed as a percentage of target area covered by spray give additional information what portion of protected area is in direct contact with the chemical. The method is demonstrated for the Joco tunnel sprayer and conventional air-assisted sprayers.
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Opis fizyczny
http://www.ejpau.media.pl/series/volume5/issue1/engineering/art-03.html
Twórcy
autor
- Research Institute of Pomology and Floriculture, 18 Pomologiczna Street, 96-100 Skierniewice, Poland
autor
autor
autor
Bibliografia
- Cross J. V., Murray R. A., Ridout M. S., Walklate P. J., 1997. Quantification of spray deposits and their variability on apple trees. Aspects of Applied Biology 48. Optimising pesticide applications, 217-224.
- Doruchowski G., 1995. Relationship between coverage and deposit as affected by air jet velocity and droplet diameter (unpublished). Presentation at 4th Workshop on Spray Technique in Fruit Growing, East Lansing, 1995.
- Holownicki R., Doruchowski G., Godyn A., 1996. Efficient spray deposition in the orchard using a tunnel sprayer with a new concept of air jet emission. IOBC/WPRS Bulletin, Vol. 19(4), 284-288.
- Huijsmans J. F. M., Porskamp H. A. J., Heijne B., 1993. Orchard tunnel sprayers with reduced emission to the environment. Proc. of Second International Symposium on Pesticide Application Techniques, Strasbourg, 297-304.
- Jiang C., Derksen C. R., 1995. Morphological image processing for spray deposit analysis. Transactions of the ASAE 38(5), 1581-1591.
- Salyani M., Fox R. D., 1994. Performance of image analysis for assessment of simulated spray droplet distribution. Transactions of the ASAE 37(4): 1083-1089.
- Salyani M., Withney J. D., 1988. Evaluation of methodologies for field studies of spray deposition. Transactions of the ASAE 31(2), 390-395.
- Sharp R. B., 1955. The determination of spray deposit using fluorescent tracers. NIAE Techn. Memo. 119
- Val L., Rocamora M. C., Pérez M., de Miquel E., 1996. Optimisation of the air assisted spraying on horticultural crops. International Conference on Agricultural Engineering AgEng 96-Madrid, paper 96A-142.
Typ dokumentu
Bibliografia
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Identyfikator YADDA
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