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Niedersächsisches Ministerium für Ernährung, Landwirtschaft und Verbraucherschutz
Lower Saxony and Bremen
Calenberger Straße 2
30169 Hannover
Website: External link to the authority
LURUU – Application of laser light to control weed plants prone to develop resistance to chemical herbicides
Weeds are becoming increasingly resistant to numerous herbicides due to the use of a limited set of active substances in chemical pesticides, close grain crop rotation and increasing ploughless soil tillage. The approach of this project is using mobile laser technology as innovative method of controlling resistant grasses such as black-grass (Alopecurus myosuroides) and loose silky-bent (Apera spica-venti). Regarding sustainability (e.g. conservation tillage) and biodiversity / climate protection (no use of chemical pesticides), the use of laser technology offers a forward-looking alternative. For this purpose, a laser treatment device for use in the field is being developed to effectively and sustainably control black-grass and loose silky-bent. Three different control strategies are investigated on an affected area. Based on the obtained data, the laser treatment is analyzed in practice and evaluated from an agricultural, technical and economic point of view.
The aim of the project was to investigate the use of laser technology to control resistant weeds and grass weeds in crops such as winter wheat.
Therefore, a ready-to-use laser applicator was developed. A generator provides the power supply. Terrain mobility is limited to dry weather conditions. Detection of the target weeds is partially automated. The automatic detection system provides suggestions, which can be edited by the operator. The subsequent irradiation process is automated.
Field trials on weed management were repeated in triplicate. In each trial, laser-, conventional- and a combined treatment were directly compared. The test results show a significant effect of laser irradiation on weed reduction.
The results also demonstrate that parameters for treatment timing and number of repetitions adapted to the effectiveness of the laser treatment, are suitable for achieving successful weed control.
Rural development 2014-2020 for Operational Groups (in the sense of Art 56 of Reg.1305/2013)
Laser Zentrum Hannover e.V
Hollerithallee 8
30419 Hannover
Phone: 0511/2788212
Email: m.wollweber@lzh.de
2020
completed
480,899
project website of EIP Lower Saxony
project website of laser centre Hannover e.V.
DE929