It was recently pointed out to me that the University of California's online journal is available to all and indexed for searching topics going back to 1946.  This is a phenomenal resource, but for some reason when doing a Google search, articles wont often turn up.  These are practical, applied presentations of work that has been done by UC researchers for the most part and cover the full gamut of research that UC ANR does.  So it covers human health issues, as well as plant, soil and environmental health ones. Check it out.

California Agriculture is a quarterly peer-reviewed journal reporting research, reviews and news on California's agricultural, natural and human resources. The journal's first issue was published in December 1946, making it one of the oldest, continuously published, land-grant university research publications in the country. It is also among the largest circulation publications of its kind (about 10,000 print subscribers).

The journal is published by the University of California Division of Agriculture and Natural Resources (UC ANR). In recent years, roughly 75% of authors have been affiliated with UC ANR, though, authors from other institutions are encouraged to submit manuscripts, and author affiliation is not considered in our review process. UC ANR authors include UC ANR Cooperative Extension (UCCE) advisors and specialists, as well as faculty and researchers in the UC Berkeley College of Natural Resources, the UC Davis College of Agricultural and Environmental Sciences, the UC Davis School of Veterinary Medicine and the UC Riverside College of Natural and Agricultural Sciences.

In 2018, California Agriculture was awarded first place for a periodical by ACE (http://aceweb.org), the national association for agricultural extension communicators, in its annual competition.

Try it, you might like it: California Agriculture.

 And More!

It's also possible to access Hilgardia at this site. 

Hilgardia was the primary technical publication of University of California Division of Agriculture and Natural Resources for 70 years, published from 1925 to 1995.

Now digitized, the information in Hilgardia is freely available to scholarly and lay readers. Searchable pages display each monograph's abstract or first page, author information and full citation list. Each of the 972 articles link to the full-text publication, which is downloadable as a high-resolution, searchable PDF. Start your search here.