This low representation of smoking-related twitter topics likely was impacted by the methodology of data collection and its associated limitations . Of the 34 smoking-related keywords used to query the Twitter API, eight returned over 100 tweets from college campuses during this time period: cigarette , dip , joint , njoy , pipe , smoke…
All posts tagged cannabis cultivation
The 1-mile buffer has been frequently used to represent a walkable distance to tobacco and alcohol outlets
Adolescents’ marijuana use is associated with adverse neurobehavioral and health effects from adolescence through adulthood. According to the Monitoring the Future study, secondary- and high-school students reported increasing trends in past-year and past-month marijuana use in the past decade . These trends coincided with the increasing recreational marijuana legalization and commercialization in the US since 2012. Emerging…
These regulations have the potential to ensure that there is some demand for non-GM grain
Increasing chemical use, in conjunction with growing weed resistance and limited options for chemical weed control, has raised costs and depleted the bottom line for many rice producers in California. Many of the restrictions on farm chemical use can be traced to growing recognition of environmental externalities from chemicals used on the land and political…
On-farm research and pilot farms allow for more effective and quicker implementation on a farm level
In addition to labor costs, labor shortages have also been a long-standing trend in California agriculture as American agriculture increasingly competes with Mexican farms for farm labor . This structural shift in the labor pool has caused fewer workers to be available for low-skill, low-wage agricultural jobs. Furthermore, human labor also is time-consuming and error-prone,…
It is beyond the scope of this study to determine exactly at what penetration rates things change
The shorter charging times enabled by Level 3 charging, while convenient and possibly economically motivated, introduce significantly more variance in emissions results. The authors of this work believe that much more attention to DCFC load growth and charge management in terms of research, financial justification, and policy planning is warranted. In Phase I, where we…
A key contribution of this effort is to characterize the variance across a range of use cases
To design effective resistance management strategies for the long term, UC and other scientists are conducting basic research on weed biology and on ecological and evolutionary processes in weed populations. In a few cases, the mechanisms that confer resistance to herbicides have altered the fitness of resistant plants, as compared with susceptible plants of the same…
The possibility of weed shifts and weed resistance is a concern with RR alfalfa
A tank mix of glyphosate and Velpar, or a rotation to Velpar and Gramoxone, was needed to adequately control all weed species at this location. To our knowledge there have been no documented cases of weed resistance in alfalfa during the first 3 years of RR alfalfa production in the United States. This is due to…
Some weed seeds require scarification and disturbance for germination and emergence
Machinery would be used less, and that would mean an additional savings of an estimated $2500 in machinery wear. Conservation tillage is an umbrella term that encompasses many types of tillage and residue management systems . There are several definitions for CT. For example, Allmaras and Dowdy define it as “a combination of cultural practices that…
Modern approaches have resulted in a deeper understanding of host resistance to parasitic plants
Cryo-EM is providing previously unobtainable, high-resolution structures of plant viruses and it holds promise for resolving intracellular macromolecular virus-associated complexes . Approaches such as RNA-seq, small RNA sequencing, metabolomics, and proteomics should facilitate dissection of molecular signatures that are altered in the vector during virus acquisition and in the host upon infection. Furthermore, understanding of…
What Is the Ideal Setup for a Vertical Grow Rack in an Indoor Farm?
As urbanization accelerates and arable land diminishes, indoor farming has emerged as a cornerstone of sustainable agriculture. Among its most transformative innovations is the vertical grow rack—a space-efficient system that stacks crops vertically to maximize yield in limited spaces. But designing an effective vertical grow rack setup isn’t as simple as stacking trays and plugging in…