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Titre : Influence of the height of a field toolbar and utility liquid pressure on sedimentation drift
Mots-clés : spray drift, field toolbar, nozzles, liquid pressure, wind speed
Résumé :

The objective of the presented research was to determine the effect of a spray boom height and utility liquid pressure on downwind spray drift deposited on the ground. In the field experiment a field crop sprayer was used with 12 m spray boom and LU 120-03 flat-fan nozzles. During the tests the spray was applied on the 60 m long area and as wide as the sprayer. For each combination of the spray boom height (0.35; 0.5; 0.75 m) and operational pressure (0.15; 0.3; 0.5 MPa) 5 applications (replications) were carried out with BSF fluorescent dye, at driving velocity 6.0 km∙h-1. The results confirmed a significant influence of the spray boom height, liquid pressure and wind speed on spray drift. The treatments with low spray boom at 0.35 m and at low pressure 0.15 MPa resulted in drift reduction by 50% to 3 m downwind of the sprayed crop, compared to the reference application parameters: spray boom height 0.5 m and liquid pressure 0.3 MPa. The excessive height of the toolbar 0.75 m and medium pressure 0.3 MPa, applied at wind speed 2.4 m.s-1 increased spray drift by 75%. The highest drift was observed for the spray boom height 0.75 m and liquid pressure 0.5 MPa

Utilisez, s’il sous plaît, le modèle ci-dessous pour citer cet article : Świechowski, W., Hołownicki, R., Godyń, A., Doruchowski, G. (2013). Influence of the height of a field toolbar and utility liquid pressure on sedimentation drift. Inzynieria Rolnicza, 3(146), 389-397.
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