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Patch Spraying in the UK

Patch Spraying in the UK. Nicola Perry Nicola.Perry@adas.co.uk. Pesticide application. Patch spraying of herbicides Variable fungicide and growth regulator Matching application to target dose application. Spatially variable pesticide application. All systems need: in-field location

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Patch Spraying in the UK

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  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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