Search results for "Sprayer"

Spatially variable rate herbicide application on durum wheat in Sicily

2004

Using the conventional farming system, durum wheat requires high rates of herbicide spraying. Herbicide residues can cause pollution of soil and ground water and, therefore, of the entire environment. In order to minimise the environmental impact of herbicides, a home made system for spatially variable rate crop input application was designed, developed and set up by the Department of Engineering and Technologies in Agriculture and Forestry (I.T.A.F.). This system consists of a DGPS, a portable computer, a specifically developed software and a device for applying rates proportionally related to the machine forward speed (DPA). Tests of spatially variable rate herbicide application were carr…

Assessment of the wind influence on spray application using an artificial vineyard

2011

Analisi qualitativa della distribuzione di fitofarmaci con irroratrici su vigneto a controspalliera

2004

Today a very effective crop protection is necessary to improve the production of good quality wine and to limit the environmental pollution. Field tests were carried out in a Sicilian vineyard using two different sprayers, in tree periods, each corresponding to a different canopy distribution. The objective of this research was to determinate the best operative solution in order to obtain an effective vineyard protection. The quality of distribution was evaluated through the coverage index of the canopy, the number of impacts per square centimetre and the mean diameter of the drop prints on artificial targets opportunely placed into the canopy, as the canopy volume varies. The sprayers were…

Herbicide site specific spraying: use of simulations to study the impact of section width

2019

International audience; Site specific spraying is one way to reduce the amount of herbicide required to control weeds. The impact of boom section width was investigated by using simulated weed infestation maps with various weed coverage rates. Herbicide applications were simulated combining these virtual maps with various boom sections widths and various theoretical spray patterns. The objective was to quantify the herbicide reduction possibilities and potential under-application areas. Simulation derived results are analyzed using three indicators: i) the ratio between herbicide amount in the case of a targeted application and the amount deposited in the case of a full application, ii) the…