Effect of operational parameters on droplet deposition characteristics using an unmanned aerial vehicle for banana canopy.

In recent years, as an important part of precision agricultural aviation, the plant protection unmanned aerial vehicle (UAV) has been widely studied and applied worldwide, especially in East Asia. Banana, as a typical large broad-leaved crop, has high requirements for pests and diseases control. The mechanization degree of plant protection management in banana orchard is low.

Mesoporous TiO@g-CN Nanostructure-Enhanced Photocatalytic Degradation of Tetracycline Under Full-Spectrum Sunlight.

TiO has broad prospects in reducing the safety risks posed by emerging pollutants in water environments. However, the high recombination rate of photogenerated carriers limits the activity and photon utilization efficiency of TiO. In this study, mesoporous TiO (m-TiO) and ultra-thin g-CN nanosheets were composited using a hydrothermal method, with the m-TiO tightly and uniformly wrapped by g-CN.

Regulating the dynamic wetting behavior of pesticide on banana leaves at different growth stages with surfactants.

Background: Pesticide spraying constitutes an essential component of the production and management regimen within banana orchards, extending throughout the entire growth cycle of the banana plants. Exploring the intricate interplay between surfactants, pesticide formulations, and the evolving surface properties of banana leaves throughout their growth stages is critical to the enhancement of pesticide application methods and the elevation of agricultural productivity.

Results: Through investigating the regulatory impact of surfactants on the physicochemical properties of medicinal solutions, this study elucidates the interaction mechanism between the physicochemical properties of pesticides and the surface characteristics of banana leaves.

Wetting and deposition characteristics of air-assisted spray droplet on large broad-leaved crop canopy.

Precision and efficient pesticide spraying is an important part of precision agriculture, banana is a large broad-leaved plant, with pests and diseases, has a high demand for spraying and pest control. The purpose of this study was to clarify the wettability of different pesticides on the banana leaf surface, and the effects of nozzle type and working parameters on the deposition distribution performance under air-assisted spray conditions. The wettability test results of different pesticides on banana leaf surfaces showed that the wettability of the adaxial side was always stronger than that of the abaxial side, the smaller the surface tension of the droplets, the better the wettability on the surface.

Banana Leaf Surface's Janus Wettability Transition from the Wenzel State to Cassie-Baxter State and the Underlying Mechanism.

Janus wettability plays an important role in certain special occasions. In this study, field emission scanning electron microscopy (FESEM) was used to observe the surface microstructure of banana leaves, the static wettability of the banana leaf surface was tested, and the dynamic response of water droplets falling at different heights and hitting on the adaxial and abaxial sides was studied. The study found that the nanopillars on the adaxial and abaxial sides of the banana leaf were different in shape.

Microscale mechanism of microstructure, micromorphology and Janus wettability of the banana leaf surface.

As a result of natural selection, the adaxial and abaxial sides of banana leaves show different wetting states and anisotropy. Janus wettability between the adaxial and abaxial sides of the banana leaf surface is revealed for the first time in this work. This has relevance for the preparation of bionic materials and an important role in the efficient and high-quality production management of pesticide spraying in banana orchards.