Posts Tagged: Agriculture

South Coast REC studies pesto profitability for small-scale basil growers

UC ANR advisors, staff research methods in conserving highly perishable product

If you visited the greenhouse at the University of California South Coast Research and Extension Center in early fall, you would have smelled a sweet aroma with notes of lemon, pepper and licorice.

In one of the conservatories, a team of UC Cooperative Extension advisors and staff grew seven varieties of basil and by the end of October, the plants stretched nearly two feet tall with leaves large enough to warrant a closer look. The wonderful smell would soon become delightful tastes, as the team planned to turn the basil into pesto.

“The rationale was to provide a high-value crop and a value-added solution for urban horticulture, transforming a highly perishable product into something that can be conserved,” said Gerardo “Gerry” Spinelli, UC Cooperative Extension production horticulture advisor for San Diego County, who initiated the passion project.

After noticing a sign at South Coast REC asking consumers to use produce grown onsite in their everyday cooking, Spinelli felt inspired. The sign also requested photos of homemade dishes be sent to South Coast REC's interim director, Lindsey Pedroncelli, to generate content for the REC's Instagram account.

Envisioning a “bigger picture” for this effort, Spinelli turned to Pedroncelli for support. The two agreed that the basil project demonstrates a viable pathway for urban growers who have limited space, and positions South Coast REC as an ideal partner for such endeavors. Uniquely located in urban Irvine, South Coast REC has nearly 200 acres of land reserved for agricultural research and is one of nine RECs housed under UC Agriculture and Natural Resources.

“Urban growers are constantly looking for new ways to grow food and market their products. Growing plants using the Kratky hydroponic system is a low-input method that is simple to establish and easy to maintain,” said Pedroncelli.

Aside from its research purposes, the project was the perfect opportunity to engage other advisors and staff at South Coast REC. The extra hands and taste buds that helped with this effort would later be known as the South Coast REC Pesto Task Force.

Growing in hydroponics

Given Spinelli and Pedroncelli's Italian ancestry, it was no question that the basil would be used to make pesto – a traditional sauce originating from Genoa, Italy that's commonly consumed on pasta. In just about two months, the following basil varieties flourished in a hydroponic system: cinnamon, Mrs. Burns' Lemon, Kapoor Tulsi, Thai Towers, Amethyst Improved, Red Rubin and the traditional Genovese. With these varieties, Spinelli and Pedroncelli were also interested in testing how taste and color affect the pesto.

Since learning about the Kratky method, a passive hydroponic technique developed by Bernard Kratky at the University of Hawai'i, Spinelli has championed it as an easy and affordable way to grow food. He has produced several videos in English and Spanish about the technique on his YouTube Channel and created a fact sheet that can be downloaded from his website.

Some of its advantages are the low initial capital investment, excellent water and nitrogen use efficiency, short cycle of production and the fact that it is modular and easy to set up, move and store – a major advantage for growers who only have access to space for a limited time and investments on immobile structures are not justifiable.

For the setup, eight 2'-by-3' tubs were used, and each was filled with 20 gallons of water before adding a fertilizer mix that contains one ounce of calcium nitrate, one ounce of magnesium sulfate or Epson salt and 0.6 ounces of lettuce formula. With the additional steps of seeding, drilling holes into the Styrofoam, and placing the net cups with seedlings into each hole, Spinelli estimated about 30 minutes of setup for each tub.

Estimating potential profit for urban growers

Although prices per quantity vary, he also estimated about $25 for the 20-gallon tub, a panel of Styrofoam and net baskets, which can all be reused. In addition, the fertilizer and propagation materials, including seeds and pellets, will cost roughly $68. When breaking these materials down according to the number of growing cycles, about one to two months each, the cost amounts to approximately $5 per tub for 25 cycles.

Using basil sold at Trader Joe's for reference, Spinelli estimated that each ounce of basil grown is worth about 70 cents. The “million-dollar question,” as Spinelli puts it, is how much profit one can earn from this endeavor. Because the Amethyst Improved and Red Rubin varieties had the lowest yields of 12 and 18 ounces, they were combined to make 40 ounces of pesto. In contrast, Genovese had the highest yield of 51 ounces of basil – which produced 64 ounces of pesto.

Using a ratio of 0.7 to 0.9 ounces of basil for every liquid ounce of pesto, and calculating projected value based on Trader Joe's pricing, the Amethyst Improved and Red Rubin combined pesto had a projected value of $21, whereas Genovese had a projected value of $36. Without being combined with any other variety, however, the smallest projected value was the Kapoor Tulsi variety which had a yield of 22.5 ounces, making 28 ounces of pesto and resulting in a $16 projected value.

There are a few costs that Spinelli and Pedroncelli could not account for, such as hypothetical transportation to the market for sale, and the various prices of ingredients used to make pesto – almonds and walnuts, for instance, could be used as a cheaper alternative to the traditional pine nuts.

“With a traditional recipe you spend $5 for the basil and $25 for the other ingredients to produce eight 8-ounce jars of pesto. If you can sell each jar for $10 at the farmers market, there are $50 for profit – maybe more if you can sell one jar for $15, or you can save with non-traditional ingredients,” Spinelli explained.

An additional advantage, which may come with additional expenses, is that pesto can be conserved. The business model could be that the grower sells basil at the farmers market and transforms the unsold product into pesto before it goes bad.

“Getting involved in agriculture can be intimidating and costly, so researching and showcasing inexpensive methods that can easily be scaled to fit your needs is incredibly helpful for both new and seasoned growers,” Pedroncelli said.

South Coast REC staff offer taste buds at ‘pesto party'

Following their harvests in October, Spinelli and Pedroncelli hosted two “pesto parties” for staff at South Coast REC. Although traditional pesto is made with Genovese basil, pine nuts, garlic, Pecorino cheese and olive oil, Spinelli and Pedroncelli experimented with different cheeses and nuts across the seven varieties of basil. Staff offered their taste buds and critical review of each pesto, advising the two chefs to add more or less of a particular ingredient.

Eager to share their progress and vision with UC ANR's senior leadership, Spinelli and Pedroncelli carefully preserved and packaged eight jars of homemade pesto and had it specially delivered to Vice President Glenda Humiston.

“This is a creative way to demonstrate innovation and a fantastic opportunity to support our urban communities. It's not just practical, but economically feasible,” said Humiston, who was pleasantly surprised by the pesto delivery. “Plus, I love pesto!” she added.

What started out as a passion project quickly turned into an opportunity to show how a resource hub like South Coast REC can empower its urban clientele both educationally and economically. It was also the perfect opportunity to engage South Coast REC staff in an activity outside of their day-to-day responsibilities, making for excellent photo ops and social media posts.

Young orchard water and nutrient management workshops offered in Madera, Stockton, Parlier, Tulare

Growers invited to discuss young almonds, pistachios, walnuts, olives, citrus and peach orchards starting Feb. 18

To help growers manage irrigation and nutrients for young and immature orchards, UC Cooperative Extension is offering workshops in Madera, Stockton, Parlier and Tulare. 

The workshops will feature presentations by various experts and researchers focusing on best irrigation and nutrient management practices tailored specifically for young orchards in the San Joaquin Valley. They will cover almonds, pistachios, walnuts, olives, citrus, and peaches.

“Attendees will gain insights into the irrigation and nutrient needs of young orchards, which are different from those applicable to mature orchards, and learn strategies for adjusting these practices as orchards mature,” said Moneim Mohamed, UC Cooperative Extension irrigation and soils advisor for Stanislaus, San Joaquin and Merced counties. “This knowledge aims to ensure healthier tree development, better resource use and more resilient orchards in the face of climate change.”

Growers, certified crop advisers and other agricultural professionals are encouraged to attend. Workshop attendees may request one-on-one assistance from a UCCE farm advisor.

Speakers include UCCE advisors Moneim Mohamed, Mae Culumber, Cameron Zuber, Tobias Oker, Phoebe Gordon and Raymond Mireles; UCCE specialists Giulia Marino and Khaled Bali; Charles Hillyer of Fresno State; and USDA research agronomist Sultan Begna.

The Young Orchard Irrigation and Nutrient Management workshops will be held in four locations: 

Madera

Feb. 18 (8 a.m.–12:30 p.m.)
Madera County Farm Bureau, 1102 S Pine St., Madera, CA 93637

Register at https://ucanr.edu/orchardsmadera

Stockton

Feb. 20 (8 a.m.–12:30 p.m.)
Robert J Cabral Agricultural Center, Assembly Room 3, 2101 E Earhart Ave #200, Stockton, CA 95206

Register at https://ucanr.edu/orchardsstockton

Parlier

Feb. 25 (8 a.m.–12:30 p.m.)
Kearney Agricultural Research and Extension Center, Nectarine Room, 9240 S. Riverbend Ave, Parlier, CA 93648

Register at https://ucanr.edu/orchardskearney

Tulare

Feb. 27 (8 a.m.–12:30 p.m.)
UC Cooperative Extension, 4437-B S. Laspina St., Tulare, CA 93274

Register at https://ucanr.edu/orchardstulare

Workshops are free and include coffee breaks, lunch and workshop materials along with the presentations. Registration is required. 

These workshops are supported by a grant from California Department of Food and Agriculture and co-sponsored by Almond Board of California, California Pistachio Research Board, Meter Group Inc., AvidWater, SWAN Systems, and HotSpot AG.

Wildfire takes toll on mental, physical health of food producers

Farm Bill could support awareness of help available

The people who produce our food need support – especially in the areas of mental and physical well-being – to recover from increasingly widespread wildfire, scientists have found. The federal Farm Bill could help, but it is languishing in Congress (an extension of the previous Farm Bill was passed in late December 2024).

Postdoctoral researcher Natalia Pinzon Jimenez used surveys to hone in on the experiences of ranchers and farmers impacted by wildfire. Pinzon recently earned her Ph.D. at UC Davis and produced her findings with a team that included Leslie Roche, a professor of Cooperative Extension in the Department of Plant Sciences.

The team surveyed more than 500 ranchers and farmers affected by wildfires between 2017 and 2023. Pinzon recently summarized her findings in this research report. She also recently launched a website, Wildfires & Agriculture, based on her findings. Its goal is to help producers become more resilient to fire by providing tools, improving research and effecting policy.

Financial and technical assistance also matter, but are secondary, said the producers who participated in the surveys.

“The No. 1 wildfire impact for ranchers is on their physical and mental health,” said Tracy Schohr, a research team member and livestock and natural resources advisor in Plumas, Sierra, and Butte counties with UC Agriculture and Natural Resources (Schohr earned her master's degree with Ken Tate, also a professor of Cooperative Extension in the department.)

“This underscores the need for future United States Department of Agriculture disaster programs to prioritize physical and mental health and emphasizes the importance of USDA investment in training staff and partners in trauma-informed approaches to aid farmers and ranchers affected by disasters,” Schohr argued.

In addition to being scorched by wildfire, farmers and ranchers are on the front lines of wildfire response, both on their properties and in their communities. When it's not wildfire season, they manage future risks by reducing fuel loads on their properties, installing off-grid systems and water storage, planning for wildfire response and training employees, Pinzon reported.

Need for greater awareness of help available

While producers were optimistic about their chances of recovering from wildfire, Pinzon found they have a limited financial safety net supporting them. Most producers relied on personal savings to recover from significant losses. Small producers, those using organic or sustainable practices, beginning producers, first-generation producers and people renting their land all had fewer resources, including crop insurance.

In addition, 78 percent of farmers and 58 percent of ranchers did not use financial assistance offered through the USDA to cope with disasters, Pinzon reported. Many didn't even know such assistance is available, or they reported the application process was too difficult.

All those pressures led to a quarter of the respondents admitting they had considered shutting down their operations.

Pinzon pointed to the federal Farm Bill as a source for funding greater collaboration between the USDA and on-the-ground organizations such as Cooperative Extension. The aim would be “to raise awareness, expand access to assistance programs and provide science-based solutions for wildfire recovery,” Pinzon recommended.

Surveys lead to more insights

Pinzon's work is part of a larger, statewide effort to use surveys and interviews with ranchers and farmers to understand their needs, direct scientific inquiry and develop solutions to their problems.

The team includes the University of California, UC ANR, federal, state and local agencies, producer organizations and private individuals. The surveys go back to 2011 and were conducted by Roche and a network of colleagues.

Read about California ranchers' response to drought and their needs for staying strong.

Farmers and ranchers: Learn what you can do

You can prepare for wildfire on your land. Get free, online information through Farmer Campus, co-founded by Pinzon with support from the USDA. Start by downloading your Wildfire Preparedness Workbook. It includes practical, hands-on activities to help you get your operation ready to survive a fire.

This article was first published on the UC Davis Department of Plant Sciences news site.

To limit bird flu spread, keep wild birds away from poultry, livestock

Waterfowl Alert Network data help assess risk of avian influenza H5N1

Every winter, millions of migratory birds fly south to warmer locales, passing over California Central Valley dairies and poultry farms. Many of these wild waterfowl are carrying the virus that causes avian influenza, based on the U.S. Department of Agriculture's wild-bird surveillance, says Maurice Pitesky, University of California Cooperative Extension poultry specialist in the School of Veterinary Medicine at UC Davis.

Bird flu has killed millions of birds and disrupted milk and poultry production. In California, highly pathogenic avian influenza H5N1 has been detected in commercial and backyard flocks of poultry and dairy cows and, more recently, poultry and dairy workers have become infected.

“This is the largest animal disease outbreak we've ever had whether you look at geography – we've had six or seven continents affected – or whether you're looking at species,” Pitesky noted. “From a public health perspective, it's important for us to sound the alarm before this becomes a bigger problem.”

To contain the disease, USDA is testing milk for the avian influenza H5N1 virus and farmers are supplying poultry and dairy workers with personal protective equipment.

To avert future outbreaks of avian influenza from infecting livestock, Pitesky recommends reducing the overlap of waterfowl habitat with farms that raise animals. This would help prevent birds from mingling with the domestic animals and passing the virus to cows, pigs and poultry.

Knowing where waterfowl roost can help farmers and other stakeholders make informed decisions about protecting their flocks and herds.            

Based on their research, Pitesky and his colleagues have developed the Waterfowl Alert Network to provide data about locations of waterfowl roosting and feeding. The network uses data from satellites, weather radar and land-based environmental sensors. Farmers and agricultural agency personnel can use it to assess the risk wild birds pose to farms. This information can be used to identify risky habitat in close proximity to farms with the goal of shifting habitat away from farms. This might entail, for example, flooding fields that would provide waterfowl habitat in an area at a greater distance from farm animals.          

“One thing we need to consider in the medium- to long-term is the concept of waterfowl habitat shifting away from food animal production,” Pitesky said. “We know how to do this. This approach would allow us to optimize food security for our livestock and poultry while also providing habitat for waterfowl, which are vital to our ecosystem.”

Preparing soil for winter can protect soil health

Farmers placed clumps of soil into metal mesh baskets, submerged the baskets into jars of water, then watched to see if their soil held together. The slake test, conducted at the Soil Health Field Day in Woodland, measured soil health. Healthier soil, which contains more organic matter and bioactivity and can better support plant growth, stays intact.

“Participants said that it was particularly useful to see the slake test on a variety of soils to better understand the nuance of how soil health management practices such as cover cropping and reduction of tillage intensity could affect soil aggregation,” said Sonja Brodt, UC Sustainable Agriculture Research and Education Program coordinator for agriculture and environment, who attended the field day alongside Vivian Wauters, SAREP project scientist.

Technical assistance providers, farmers and other soil health professionals gathered at the Center for Land-Based Learning on Nov. 19 to learn about preparing soil for winter with a specific focus on how soil health impacts soil structure, as well as the ability for water to move through soil as opposed to puddling or running off a field.

“Soil with stable aggregates can withstand this submersion and stay intact, whereas a soil with poor aggregation will fall apart in the water,” Wauters explained.

This in-field test can produce dramatically different results, where poorly aggregated soil colors the water, while the stable, aggregated soil will leave the water column relatively clear.

Farmers were invited to bring their own soil samples to perform slake tests at the field day. Kabir Zahangir, USDA Natural Resources Conservation Service regional soil health specialist, compared soils from different management practices and discussed how to assess aggregate stability and soil water infiltration.

Margaret Lloyd, UC Cooperative Extension small farms advisor for the Capitol Corridor, and Lindsey Kelley, UCCE small farms community education specialist, discussed regional benchmarks for soil health.

Attendees also heard from experienced growers Scott Park of Park Farming Organics and Andrew Brait of Full Belly Farm, who described how they assess soil health on their farms.

By collaborating with others, Brodt said farmers and researchers are achieving benefits through learning together in real time. “We will also be able to benefit from aggregating soils data from across regions to begin to develop a statewide soil health database, which is a critical step in order for researchers to be able to determine relationships between farming practices and soil health outcomes under California conditions in the future,” she said.

Slake tests can be performed on soil from one's own backyard, garden or farm to better understand the health of the soil. Additionally, the NRCS principles of soil health – minimized disturbance, maximized biodiversity, maximized soil cover and maximized living roots – can be applied across all scales, though the specific practices will vary based on the type of yard or farm as well as the local climate and soil type.

Brodt and Wauters, who coordinate the California Farm Demonstration Network, emphasize that it's important to have local examples of innovative conservation practices across the state so people can see what is working to protect and enhance the soil health in their specific region. They encourage farmers and technical assistance providers to visit https://www.calfarmdemo.org/ to find local farms that are showcasing innovative practices. Farmers interested in being a farm demonstration site are also encouraged to contact Brodt (sbbrodt@ucanr.edu) and Wauters (vwauters@ucanr.edu).

They hope to continue to support the learning and sharing of knowledge around climate-smart farming practices to help California's farmers adopt climate beneficial practices. 

“CDFA has funding programs, such as their Healthy Soils grants, that farmers in our network can apply for to help cover the costs of implementing soil health practices,” Brodt said.

Current work on the California Farm Demonstration Network is funded through a University of California Office of the President Climate Action Grant.

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