Results 41 to 50 of about 11,538 (196)

Effect of Droplet Size Parameters on Droplet Deposition and Drift of Aerial Spraying by Using Plant Protection UAV

open access: yesAgronomy, 2020
In the field of pesticide spraying, droplet size is one of the most important factors affecting droplet deposition and drift. In order to study the effect of different droplet size parameters on droplet deposition distribution and drift of aerial ...
Shengde Chen   +7 more
doaj   +1 more source

Exploring consumers’ environmental ethical preferences in the context of unmanned aerial vehicle utilization for plant protection

open access: yesScientific Reports, 2023
The use of unmanned aerial vehicles (UAVs) has increased agricultural productivity, achieved food security, and eased the pressure associated with environmental degradation and population growth. However, consumer sentiment remains unclear.
Baoshu Wu   +3 more
doaj   +1 more source

Numerical Simulation and Analysis on Spray Drift Movement of Multirotor Plant Protection Unmanned Aerial Vehicle

open access: yesEnergies, 2018
In recent years, multirotor unmanned aerial vehicles (UAVs) have become more and more important in the field of plant protection in China. Multirotor unmanned plant protection UAVs have been widely used in vast plains, hills, mountains, and other regions,
Fengbo Yang   +4 more
doaj   +1 more source

Influence of the Downwash Wind Field of Plant Protection UAV on Droplet Deposition Distribution Characteristics at Different Flight Heights

open access: yesAgronomy, 2021
The aerial spraying of pesticides by plant protection unmanned aerial vehicles (UAV) is a process in which the spray droplet deposition on target sites occurs under the influence of the downwash wind field.
Yubin Lan   +8 more
doaj   +1 more source

Estimating soil degradation in montane grasslands of North-eastern Italian Alps (Italy) [PDF]

open access: yes, 2019
Grasslands cover a large portion of the terrestrial ecosystems, and are vital for biodiversity conservation, environmental protection and livestock husbandry.
Masin, Roberta   +4 more
core   +2 more sources

Assessment of soil erosion in olive orchards (Olea europaea L.) under cover crops management systems in the tropical region of Brazil [PDF]

open access: yes, 2020
In the tropics, water erosion is one of the most important factors leading to the degradation and deterioration of agricultural land. Olive orchards have a low canopy coverage, especially during the first years after planting, due to the low density of ...
Beniaich, Adnane   +7 more
core   +2 more sources

A Multi-Temporal Object-Based Image Analysis to Detect Long-Lived Shrub Cover Changes in Drylands [PDF]

open access: yes, 2019
Climate change and human actions condition the spatial distribution and structure of vegetation, especially in drylands. In this context, object-based image analysis (OBIA) has been used to monitor changes in vegetation, but only a few studies have ...
Alcaraz Segura, Domingo   +4 more
core   +6 more sources

Comparison of Droplet Deposition Performance Between Caterpillar Mist Sprayer and Six-Rotor Unmanned Aerial Vehicle in Mango Canopy

open access: yes智慧农业, 2022
In order to solve the problems of pesticides abuse, nonuniformity deposition and low operating efficiency, build up the smart mango orchard, sedimentary properties of liquids in mango canopy of two orchard pesticide machinery, i.e., orchard caterpillar ...
LI Yangfan   +4 more
doaj   +1 more source

Automated identification of river hydromorphological features using UAV high resolution aerial imagery [PDF]

open access: yes, 2015
European legislation is driving the development of methods for river ecosystem protection in light of concerns over water quality and ecology. Key to their success is the accurate and rapid characterisation of physical features (i.e., hydromorphology ...
Ballesteros Gonzalez, Rocio   +3 more
core   +2 more sources

Research on Methods Decreasing Pesticide Waste Based on Plant Protection Unmanned Aerial Vehicles: A Review

open access: yesFrontiers in Plant Science, 2022
In plant protection, the increasing maturity of unmanned aerial vehicle (UAV) technology has greatly increased efficiency. UAVs can adapt to multiple terrains and do not require specific take-off platforms. They do well, especially in farmland areas with
Heming Hu   +8 more
doaj   +1 more source

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