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Patch Spraying in the UK Nicola Perry

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Presentation on theme: "Patch Spraying in the UK Nicola Perry"— Presentation transcript:

1 Patch Spraying in the UK Nicola Perry Nicola.Perry@adas.co.uk

2 Pesticide application Patch spraying of herbicides Variable fungicide and growth regulator Matching application to target dose application

3 Spatially variable pesticide application All systems need: – in-field location – method of detection visual mapping for weed patches spectral reflectance for crop canopy – treatment map generated software packages are being developed – system for application injection metering control volume rate systems with a wide operating range

4 SAPPIO LINK Project Exploiting Weed Patch Dynamics Research Partners IACR-Rothamsted, Silsoe Res. Inst. Industrial Partners AGCO, Micron Sprayers, HGCA

5 Aim of project To develop a spatially selective weed control system for arable crops, that delivers a reduction in herbicide use and consequent financial benefit to users and to the environment

6 Research areas Mapping based on visual detection Patch stability Feasibility of automated detection Validate system

7 Weed patch detection

8 Timing of visual assessments

9 Crop canopy monitoring Or from: aircraft or satellites

10 Treatment map generation

11 Defined treatment map

12 Herbicide savings Cost of mapping approx. €3/ha

13 Project Demonstration Live demonstration of weed mapping and patch spraying Attended by farmers/contractors, advisors, industry, environment / regulatory authorities Reported in UK farming press

14 Current Status of Patch Spraying in the UK Variable rate Micron PatchSpray ~ 10 operating in UK Injection metering ~ 50 operating in UK ~ only a few interfaced with a map based control system Switching on/off?

15 Problems with implementing patch spraying Management not as straightforward Involves greater level of decision making Collecting and handling data Make technology and interface easier to manage (Economics)


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