- Weed Control and Herbicide Applications
- Soil Mechanics and Vehicle Dynamics
- Plant Disease Management Techniques
- Plant Surface Properties and Treatments
- Nematode management and characterization studies
- Agronomic Practices and Intercropping Systems
- Crop Yield and Soil Fertility
- Agricultural Science and Fertilization
- Agricultural Engineering and Mechanization
- Growth and nutrition in plants
- Allelopathy and phytotoxic interactions
- Smart Agriculture and AI
- Soil Management and Crop Yield
- Agriculture, Plant Science, Crop Management
- Irrigation Practices and Water Management
- Turfgrass Adaptation and Management
- Plant nutrient uptake and metabolism
- Soil Carbon and Nitrogen Dynamics
- Tree Root and Stability Studies
University of Hohenheim
2020-2024
Abstract More than 40 weeding robots have become commercially available, with most restricted to use in crops or fallow applications. The machines differ their sensor systems for navigation and weed/crop detection, tools degree of automation. We tested seven robotic sugar beet winter oil‐seed rape 2021 2022 at two locations Southwestern Germany. Weed crop density working rate were measured. Robots evaluated based on weed control efficacy (WCE), stand loss (CL), herbicide savings treatment...
Precision agriculture is about applying solutions that serve to obtain a high yield from the optimization of resources and development technologies based on collection use precise data. agriculture, including camera-guided row detection hydraulic steering, often used as an alternative because crop damage can be decreased driving speed increased, comparable herbicide applications. The effects different approaches, such uncontrolled (UC), mechanical weed control (MWC), (HWC), + (MWC HWC),...
Abstract Effective weed control is extremely important in vegetable production because weeds affect yield and quality of crops. Usually, only combinations preventive direct methods can sufficiently suppress weeds. Therefore, costs for weeding are much higher vegetables compared to most arable Due restrictions herbicide use vegetables, alternative efficient urgently needed. Six field experiments with transplanted cabbage lettuce were conducted Southwestern Germany quantify the efficacy (WCE)...
Reducing the use of chemical-synthetic herbicides with site-specific application technology will play an important role in agricultural research and practice coming years decades. This paper presents a sprayer for weed control row crops using detection based on image analysis spot data. Two small plot trials sugar beet maize 2021 seven On-farm field beet, sunflower 2022 are presented. A pair-wise comparison broadcast application, untreated spotting were realized. zero-tolerance strategy...
Abstract Negative impacts of pesticides on the environment and human health, risk pesticide residues in food chain, problems with herbicide‐resistant weed biotypes support need for alternative cropping systems. The objective this study was to investigate populations, management crop yield a pesticide‐free system use mineral fertilisers. Conventional‐, organic‐ mineral‐ecological systems (MECS) 6‐year rotations including winter wheat, maize, triticale or rye, soyabean spring pea, barley were...
Spot spraying can significantly reduce herbicide use while maintaining equal weed control efficacy as a broadcast application of herbicides. Several online spot-spraying systems have been developed, with sensors mounted on the sprayer or by recording RTK-GNSS position each crop seed. In this study, spot was realized offline based georeferenced unmanned aerial vehicle (UAV) images high spatial resolution. Studies were conducted in four maize fields Southwestern Germany 2023. A randomized...
Due to the increasing number of herbicide-resistant weed populations and resulting yield losses, control must be given high priority ensure food security. Integrated management (IWM) strategies, including reduced herbicide application, sensor-guided mechanical combinations thereof are indispensable achieve this goal. Therefore, study examined pre- post-emergence applications with sensor-based harrowing hoeing in cereals by conducting five field experiments at two locations Southwestern...
Harrowing is mostly applied with a constant intensity across the whole field. Heterogeneous field conditions such as variable soil texture, different crop growth stages, variations of weed infestation level, and species composition are usually not considered during treatment. This study offers new approach to sensor-based harrowing which addresses these variations. Smart requires continuous adaptation treatment maintain same level selectivity while ensuring high control efficacy. Therefore,...
Setting the right intensity is crucial for success of post-emergence weed harrowing in cereals. The percentage crop soil cover (CSC) correlates with selectivity harrowing. Therefore, real-time camera-based measurements CSC offer a novel approach to automatically adjust varied by hydraulic steering tine angle. Five field experiments cereals were conducted at three locations southwestern Germany 2019 and 2020 measure effect (2020) conventional on control efficacy (WCE), density, grain yield....
Although different modifications of ridge tillage (RT) systems exist in regions around the world, positive impacts RT on crop yields and weed management are quite similar. This review gives a comprehensive summary forms highlights benefits for growth, mainly due to better access soil moisture, nutrients light. In temperate areas, can accelerate emergence because temperature is usually higher ridge. These stimulating effects increase competitiveness against weeds especially early period...
New cropping practices such as single-grain seeding, lower seed densities with stronger cultivars, wide inter-row spacings and camera-guided side-shift control for weed hoeing facilitate mechanical in oilseed rape. In a two-year field study Southwestern Germany, was compared to standard herbicide treatments untreated control. Seeding 12.5, 25 50 cm spacing included second factor the experiment. Weed crop density were measured directly after treatment. biomass, rape root diameter nitrogen...
Ridge tillage (RT) is a conservation practice that provides several benefits such as enhanced root growth and reduced soil erosion. The objectives of this study were to develop an autosteered living mulch seeder hoeing prototype for RT systems using RTK-GNSS (real-time kinematic global navigation satellite systems) created ridges guide. It was also aimed compare weed control efficacy crop response ridge-hoeing compared conventional in flat (FT). further investigate the impact new technology...
Ridge tillage can enhance root growth and thus make crops more competitive against weeds at early stage. In addition, ridging sowing with autosteering real time kinematic geographical satellite navigation systems allow for precise post-emergent hoeing taking the furrow as a guideline. The goals of this study were to investigate impact re-compacted ridges on soil temperature, water, penetration, maize development compared conventional flat tillage. It was also aimed develop new prototype...
Precision agriculture including camera-guided row detection and hydraulic steering are often used as an alternative because crop damage can be decreased driving speed increased comparable to herbicide applications.The effects of different approaches uncontrolled (UC), mechanical weed control (MWC), (HWC) + (MWC+HWC) on density yield sugar beet were tested evaluated in two trials (2021 2022) South Transylvania at the intervals BBCH 19 31. Weed efficacy (WCE) depends emergence weeds a good...