Next Article in Journal
Data Mining Nitrogen-Responsive Gene Expression for Source–Sink Relations and Indicators of N Status in Potato
Next Article in Special Issue
Field Robots for Intelligent Farms—Inhering Features from Industry
Previous Article in Journal
New Approach to the Assessment of Insecticide Losses from Paddy Fields Based on Frequent Sampling Post Application
Previous Article in Special Issue
Evaluation of a Stereo Vision System for Cotton Row Detection and Boll Location Estimation in Direct Sunlight
Article

A Concept of a Compact and Inexpensive Device for Controlling Weeds with Laser Beams

1
Department of Power Plants Networks and Systems, South Ural State University, 454080 Chelyabinsk City, Russia
2
Department of Plant and Environmental Sciences, Faculty of Science, University of Copenhagen, Højbakkegaard Allé 13, DK 2630 Taastrup, Denmark
*
Author to whom correspondence should be addressed.
Agronomy 2020, 10(10), 1616; https://doi.org/10.3390/agronomy10101616
Received: 1 October 2020 / Revised: 19 October 2020 / Accepted: 19 October 2020 / Published: 21 October 2020
A prototype of a relatively cheap laser-based weeding device was developed and tested on couch grass (Elytrigia repens (L.) Desv. ex Nevski) mixed with tomatoes. Three types of laser were used (0.3 W, 1 W, and 5 W). A neural network was trained to identify the weed plants, and a laser guidance system estimated the coordinates of the weed. An algorithm was developed to estimate the energy necessary to harm the weed plants. We also developed a decision model for the weed control device. The energy required to damage a plant depended on the diameter of the plant which was related to plant length. The 1 W laser was not sufficient to eliminate all weed plants and required too long exposure time. The 5 W laser was more efficient but also harmed the crop if the laser beam became split into two during the weeding process. There were several challenges with the device, which needs to be improved upon. In particular, the time of exposure needs to be reduced significantly. Still, the research showed that it is possible to develop a concept for laser weeding using relatively cheap equipment, which can work in complicated situations where weeds and crop are mixed. View Full-Text
Keywords: laser-weeding; laser-based weed control; non-chemical weed control; thermal weed control laser-weeding; laser-based weed control; non-chemical weed control; thermal weed control
Show Figures

Figure 1

MDPI and ACS Style

Rakhmatulin, I.; Andreasen, C. A Concept of a Compact and Inexpensive Device for Controlling Weeds with Laser Beams. Agronomy 2020, 10, 1616. https://doi.org/10.3390/agronomy10101616

AMA Style

Rakhmatulin I, Andreasen C. A Concept of a Compact and Inexpensive Device for Controlling Weeds with Laser Beams. Agronomy. 2020; 10(10):1616. https://doi.org/10.3390/agronomy10101616

Chicago/Turabian Style

Rakhmatulin, Ildar, and Christian Andreasen. 2020. "A Concept of a Compact and Inexpensive Device for Controlling Weeds with Laser Beams" Agronomy 10, no. 10: 1616. https://doi.org/10.3390/agronomy10101616

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop