Ultraviolet Reflective Mulch
Ultraviolet Reflective Mulch - Related Videos
13:38
Isolation of Native Soil Microorganisms with Potential for Breaking Down Biodegradable Plastic Mulch Films Used in Agriculture
0 Views •
Cited by 25 •
2013
Plastic films labeled "biodegradable" are commercially available for agricultural use as mulches. Tillage represents an attractive disposal method, but degradation under field conditions is poorly understood. The purpose of this study was to develop methods for isolating native soil fungi and bacteria that colonize plastic mulch films after field burial.
09:21
Ultraviolet-Visible (UV-Vis) Spectroscopy
0 Views •
2023
Source: Laboratory of Dr. B. Jill Venton - University of Virginia Ultraviolet-visible (UV-Vis) spectroscopy is one of the most popular analytical techniques because it is very versatile and able to detect nearly every molecule. With UV-Vis spectroscopy, the UV-Vis light is passed through a sample and the transmittance of light by a sample is measured. From the transmittance (T), the absorbance can be calculated as A=-log (T). An absorbance spectrum is obtained that shows the absorbance of a...
13:59
Reflection and Refraction
0 Views •
2023
Source: Derek Wilson, Asantha Cooray, PhD, Department of Physics & Astronomy, School of Physical Sciences, University of California, Irvine, CA Light travels at different speeds depending on the material through which it is propagating. When light travels from one material to another, it will either slow down or speed up. In order to conserve energy and momentum, the light must change the direction in which it propagates. This bending of light is known as refraction. Some fraction of the...
01:02
Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview
0 Views •
2024
Ultraviolet–visible (UV–visible or UV–Vis) spectroscopy is an analytical technique that investigates the interaction between matter and UV–Vis light within the electromagnetic spectrum. This method is widely used for its versatility, simplicity, and relatively quick data acquisition, making it valuable for both qualitative and quantitative analysis. When UV–Vis radiation passes through a material, molecules absorb light depending on the energy required for electronic transitions. As a result...
02:57
The Sense of Self: Reflected Self-Appraisal and Social Comparison
0 Views •
2020
According to Charles Cooley, we base our image on what we think other people see (Cooley 1902). We imagine how we must appear to others, then react to this speculation. We don certain clothes, prepare our hair in a particular manner, wear makeup, use cologne, and the like—all with the notion that our presentation of ourselves is going to affect how others perceive us. We expect a certain reaction, and, if lucky, we get the one we desire and feel good about it. But more than that, Cooley...
FAQs
Its main pest-management effect comes from changing the visual environment above the soil. By reflecting ultraviolet and other incoming wavelengths, the mulch can disrupt visual cues that some insect pests use when approaching or settling near crops. This makes the surface part of an integrated pest-management strategy, rather than acting only through a chemical toxicant.
Reflective performance is not the only controlling variable. Soil temperature, moisture retention, and weed growth may also change because the surface alters incoming radiation at the ground. The resulting crop response depends on the interaction among mulch properties, local climate, crop development, and the length of time the reflective surface remains exposed.
Crop canopy development changes how much of the reflective surface remains visible and active around the plants. Early in establishment, exposed mulch can strongly influence the light environment near the soil and crop surface. As foliage expands, that exposure changes, so pest disruption and related environmental effects may not remain constant throughout the growing period.
The mulch modifies pest behavior through the visual environment, while insecticides are chemical tools used within pest management. Its potential value is therefore complementary: it can contribute to integrated pest management and may reduce reliance on chemical insecticides. This distinction matters when evaluating strategies that address pest pressure through environmental modification rather than toxicity alone.
Application decisions should account for the material's reflective properties, the local climate, the crop's stage of canopy development, and how long the surface will remain exposed. These factors determine whether the mulch continues to modify light near the plants and soil. Considering them together helps explain variation in pest-management, crop-establishment, temperature, moisture, and weed outcomes.
It is useful when a crop system needs to modify conditions at the soil and plant surface while supporting integrated pest management. Potential roles include disrupting visual cues for some insect pests, influencing soil temperature and moisture retention, affecting weed growth, and supporting crop establishment or productivity. Its environmental relevance includes the possibility of reducing reliance on chemical insecticides.
Results should be interpreted in relation to material properties, climate, canopy development, and exposure duration rather than treated as universally consistent. A trial may show changes in pest pressure, crop establishment, productivity, soil temperature, moisture, or weed growth, but those outcomes reflect the conditions under which the reflective surface remained effective and visible.