Posts Tagged: agriculture

Extreme weather accelerates nitrate pollution in groundwater

Extreme weather spurred by climate change, including droughts and heavy rains, may increase the risk of nitrates from fertilizers ending up in groundwater, according to a recent study from researchers at the University of California, Davis. The study found heavy rains after a drought caused nitrates to seep 33 feet under farm fields in as little as 10 days. The study was published in Water Resources Research.

“The conventional wisdom was that it could take several weeks to years for nitrates to move from the crop root zones to reach groundwater,” said corresponding author Isaya Kisekka, a professor in the Departments of Land, Air and Water Resources and Biological and Agricultural Engineering. “We found these extreme events, such as California's atmospheric rivers, are going to move nitrate more quickly.”

In this study, different methods were used to measure how much nitrate, a component of nitrogen fertilizer, was seeping down through the soil in a tomato and cucumber crop near Esparto, California. Scientists conducted their research from 2021 until 2023 when California was experiencing periods of drought followed by atmospheric rivers. They measured nitrate during both the growing seasons and the rainy seasons.

Drought can leave more nitrogen in soil

Previous studies have shown about 40% of nitrogen fertilizer used for vegetables isn't absorbed by the plants but remains in the soil. During droughts, crops don't use nitrogen efficiently, leading to excess nitrogen in the soil. This study found that if a drought is then followed by heavy rainfall, that sudden burst of water causes nitrate to seep in groundwater more quickly. The nitrate concentration in the shallow groundwater exceeded the U.S. Environmental Protection Agency maximum contaminant level of 10 milligrams per liter for drinking water.

“In California, we often say we swing between droughts and floods,” said Kisekka. “These extreme events that come with climate change are going to make the risk of these chemicals ending up in our drinking water much more severe.”

Groundwater is the primary source of drinking water for most of California's Central Valley. In some regions, such as the Tulare Lake Basin, nearly one-third of drinking and irrigation wells exceed the EPA's safe nitrate level. High nitrate levels in drinking water can increase health risks, especially for young children. It may also increase the risk of colorectal cancer.

Need for real-time soil nitrate monitoring

Central Valley farmers are required to report to the Regional Water Board how much nitrogen they applied to their field and how much was removed as part of the crop's yield. The study compared different ways of monitoring when nitrate from fertilizers seep into groundwater. Kisekka said the results highlight the need for affordable, real-time soil nitrate monitoring tools to help farmers manage fertilizer use efficiently.

By using conservation practices that limit leftover nitrates in the crop's root zone after harvest, farmers can help reduce nitrate contamination in groundwater.  

This study's data will also help improve a model called SWAT, which is used to track nitrate seepage into groundwater across California's Central Valley. This effort is part of the Central Valley Water Board's program to regulate irrigated farmlands.

Other UC Davis authors include Iael Raij Hoffman, Thomas Harter and Helen Dahlke.

The study was supported by the USDA Natural Resource Conservation Service through its Conservation Effects Assessment Project. The national project is designed to assess the effectiveness of conservation practices across different watersheds. The study also had support from the USDA National Institute of Food and Agriculture.

Students design high-tech solutions through Farm Robotics Challenge

Award-winning teams announced at FIRA USA robotics conference

A robot that navigates and weeds row-crop fields – and its design team from Olin College of Engineering in Massachusetts – have garnered the grand prize in the second annual Farm Robotics Challenge. Five winning teams, representing various universities and colleges across the U.S., were announced on Oct. 24 during a ceremony at the FIRA USA robotics conference in Woodland (watch recording).

A total of nine teams competed in the Farm Robotics Challenge, organized by University of California Agriculture and Natural Resources and the AI Institute for Next Generation Food Systems (AIFS), with support from technology partner farm-ng.

During the yearlong contest, the students engaged with growers about their pain points and challenges and then developed creative solutions using the farm-ng Amiga robot platform.

“It's inspiring to see the creativity and dedication of these students, who put in a lot of hard work and long hours to pull together some truly remarkable projects for this competition,” said Gabriel Youtsey, chief innovation officer at UC ANR. “We hope the challenge attracts more students to consider careers in agriculture; we're here to help build a supportive community to grow that pipeline to the workforce.”

Providing a platform for students to demonstrate innovative design, field testing and evaluation, and real-world problem solving, the Farm Robotics Challenge is sponsored by F3 Innovate, Beck's Hybrids, California Tomato Research Institute and the United Soybean Board.

“It's a great day when engineers, marketing and technology folks understand there are great opportunities to create products for American farmers,” said Brad Fruth, director of innovation at Beck's Hybrids. “It has been exciting for Beck's Hybrids to participate in this challenge and see the bleeding edge of where technology and agriculture converge.” 

The student teams leveraged AI, machine learning, automation, coding and fabrication to advance innovation in agriculture.

“Not only does the challenge demonstrate the future of farming with robotics, but it's also encouraging the next generation of engineers to focus their talents on the challenges that exist in growing our food,” said Brendan Dowdle, CEO of farm-ng. “The students who participate have a unique mix of skills in robotics, software and a passion for the future of agriculture.”

Grand Prize Winner: PhoenixBot, Olin College of Engineering, an autonomous mechanical weeding systembuilt to navigate through row-based crop fields of seedling to early-stage crops to effectively remove weeds from the beds

Team Advisor: Kenechukwu Mbanisi

Students:

Summer Crew/Leads: Jeffrey Woodyard, Dokyun Kim, AJ Evans, Toby Mallon, Brooke Moss

Subteam Leads: Dexter Friis-Hecht, Joe Leedy, Maya Adelman, Dominic Salmieri, Chang Jun Park, Akshat Jain

Team Members: Bill Le, Dongim Lee, Felix Halaska, Bhargavi Deshpande, Elisa Camacho, Cooper Penkava, Marcellus Smith, Rohan Bendapudi, Darian Jiminez, Ivy Mahncke, Quinn Verrill, Sam Wisnoski, Oscar Bao, Mia Chevere, Shauna Sperou

Excellence in Productivity: Florabot, Auburn University, a robot designed to autonomously navigate through nursery plant beds collecting imagery data for plant counting and quality assessment

Team Advisor: Tanzeel Rehman

Students: Hamid Syed, Faraz Ahmad, Mesbahul Maruf, Mohtasim Hadi, Carter Freeman

Excellence in Small Farms Technology: Bin Haulers, Washington State University & Heritage University, a precision agricultural robotic system designed for efficient bin-picking and placement in apple orchards

Team Advisors: Manoj Karkee, Safal Kshetri

Students: Dawood Ahmed, Syed Usama Bin Sabir, Divyanth L.G., Priyanka Upadhyaya, Achyut Paudel, Robert Barragan, Apol Medrano, Osmar Alvarez, Bethany Navaroo, Salvador Ayala

Excellence in Sustainability: TAMU-NCSU Robotics Team, Texas A&M University & North Carolina State University, a multi-modal proximal data collection system utilizing artificial intelligence to generate height maps for semi-structured row crop fields to aid in effective application of post-emergence herbicide

Team Advisors: Steven Brian Mirsky, Chris Reberg-Horton, Muthu Bagavathiannan

Students: Joe Johnson, Matthew Kutugata, Ruthvik Kanumuri, Wesley Hawkes, Jonathan Herrera, Luke Conran, Sebastian Chu

Excellence in Safety: University of California Santa Cruz, an application that allows a user to view the camera, as well as operate the Amiga robot, without a physical connection

Team Advisors: Dejan Milutinovic, Darryl Wong

Students: Katherine Rogacheva, Milos Suvakovic, Oliver Fuchs, Sam Leveau, Mauricio Chavez

In addition to recognition for their efforts, the Grand Prize Winner was awarded $10,000, and the Excellence in Productivity and Small Farms Technology winners won $5,000 each, while the Excellence in Sustainability and Safety winners won $2,500 each.

Other competitors in the challenge included teams from Cal Poly San Luis Obispo, California State University Fresno, Hartnell College and The Pennsylvania State University. 

For more information about the Farm Robotics Challenge, including details on how to participate, visit https://farmroboticschallenge.ai.

Partners unveil first on-farm robotics incubators

Opening in Salinas and Merced in 2025, Reservoir Farms will drive ag innovations in automation robotics

The Reservoir, a nonprofit building tech incubators across California, and partners Western Growers Association, University of California Agriculture and Natural Resources, Merced College, Hartnell College and venture capital firm HawkTower have announced the creation of the first-ever on-farm robotics incubators, Reservoir Farms.

Unveiled during a press conference at the FIRA USA 2024 robotics conference in Woodland, Reservoir Farms are set to open in the Central and Salinas Valleys in early 2025. This pioneering initiative significantly shifts how agricultural technology innovates through real-world testing environments, world-class resources and critical industry partnerships.

California agriculture faces critical challenges, including labor availability and cost, import competition, increased regulation, water scarcity, and climate-related challenges, including extreme weather. These challenges have spurred significant advancements in agricultural precision, automation, mechanization, and robotics in recent years.

Despite advancements, early-stage agtech projects lack critical ecosystem support, like connecting directly with growers, testing and validating their solutions, and accessing dedicated shop space and farmland. These gaps hinder capital efficiency and the development of critical solutions that meet the agricultural sector's needs.

Initial projects at the incubators will focus on early-stage agricultural innovations in automation and robotics, including rovers and drones, that accelerate the development of breakthrough solutions to the opportunities and imperatives faced by California farms producing high-value specialty crops, such as labor shortages, profitability, and adopting climate-smart technologies.

Western Growers Association, a key advocate for advancing agricultural innovation, will provide financial and operational support as an anchor partner.

Anchor educational partners like UC ANR, Hartnell College, and Merced College will play a crucial role in innovation and workforce development, preparing the next generation of agricultural researchers, professionals, and innovators to drive the future of farming in California.

HawkTower, a venture capital firm investing in early-stage startups developing breakthrough innovations for California's environmental and industrial imperatives, is also an anchor partner.

“The launch of Reservoir Farms is a critical step forward in ensuring the future resilience of California's agriculture and across the Central Coast and Central Valley,” said Danny Bernstein, CEO of the Reservoir and managing partner of HawkTower. “By placing incubators directly on the farm, we enable innovators to test, iterate, and scale solutions in real-world conditions as a more immediate path to advance farming communities.”

A new model to incubate agtech innovation

The idea for Reservoir Farms emerged from extensive industry research and consultations with over 50 organizations in the specialty crop sector. Key insights uncovered critical gaps in startups' access to real-world testing environments, shop space, and direct relationships with growers – factors severely hindered capital efficiency and posed a formidable barrier to innovation.

“Our goal is to eliminate the friction points that have historically slowed down the development of new agtech solutions,” said Walt Duflock, senior vice president of innovation at Western Growers Association. “Reservoir Farms offers a new model, where startups can work side-by-side with growers to test their technologies, iterate in a low-stakes environment, and build scalable solutions to improve agriculture's operations.”

Initiative to support thriving agtech ecosystem and job creation

The Reservoir Farms initiative also reflects a broad-based collaboration between key educational institutions, industry players, and local communities to ensure the next generation of agricultural professionals is equipped with the skills needed to support the region's growing agtech sector.

Supporting partners include Central Coast Small Business Development Center (SBDC), Communities Organized for Relational Power in Action (COPA), Digital NEST, Farmhand Ventures, Merced County Farm Bureau, Milano Technical Group, Monterey Bay DART (Drone Automation & Robotics Technology), Monterey Bay Economic Partnership, Monterey County Farm Bureau, Tesserakt Ventures, and The VINE.

“As robotics and automation become more integral to California agriculture, it's essential to have facilities like Reservoir Farms embedded within the farming community,” said Gabriel Youtsey, chief innovation officer at UC ANR. “By bridging the gap between lab-based research and real-world application and accelerating tech transfer, Reservoir Farms can help build the workforce and technology needed to address the critical challenges on the farm, from labor shortages to climate change.”

Focus on specialized services and real-world testing in California's agricultural heartland

Reservoir Farms will open its first two locations in Salinas Valley and Merced in the first quarter of 2025. Participants can lease testing fields and shop space without the burden of multi-year leases, giving them the flexibility needed to scale. The incubators will offer fully equipped R&D workshops, secure storage for expensive equipment, and customized, pre-planted specialty crop fields for testing.

These facilities will be complemented by Reservoir Farms' co-working spaces, meeting rooms, and a robust demo day schedule designed to connect startups with growers, investors, and other key stakeholders.

In addition, the Western Growers Association's validation process will provide startups with a quantitative “scorecard” that offers crucial metrics on scalability, efficacy, and financial viability. This validation, combined with UC ANR's field testing, will help startups refine their products and receive a critical stamp of approval that builds trust with growers and ensures a smoother path to commercialization.

Media Contact:

Jennifer Goldston
AgTech PR for the Reservoir
816-260-0040
jennifer@agtechpr.com

UC ANR project to help underserved farmers in SoCal with land ownership

San Diego County has more than 5,000 small farms but less than 2% are operated or owned by Black, indigenous, or people of color – including those of Asian, Hispanic or Native Hawaiian/Pacific Islander descent, according to the 2022 Ag Census.

The reasons vary, but historically, multiple marginalized communities of color have not received the same opportunities or support for land ownership or management as their white counterparts.    

Chandra Richards, University of California Cooperative Extension land equity academic coordinator for the Southern California region, is identifying barriers to equity when it comes to addressing land access, tenure, management and opportunities to increase the diversity of land managers and land ownership in the region.

Richards is the principal investigator for the Climate Action and Land Equity (CALE) project administered through UC Agriculture and Natural Resources and funded by the Department of Conservation. CALE aims to engage historically underrepresented communities in coalition building, capacity assessment and climate action planning. CALE elevates knowledge about the challenges and opportunities to land access and management for a diversity of land managers.

Among the challenges is land tenure, an established agreement between a landowner and tenant, outlining the purpose and use of the land over a period of time. However, when landowners decide to sell their land, these agreements are at risk of being null and void, forcing the tenants to renegotiate or discontinue their operation.

Land tenure leases for under five years are considered short-term, which are common in Southern California. For small, new and under-resourced farmers, landowner turnover doesn't just threaten their business plan but their livelihood.

For small farmer Byron Nkhoma, who leases land in Ramona to grow leafy greens and vegetables, the possibility of losing land is a constant worry. Since 2015, Nkhoma and his wife, Joyce, have been renting four of 20 acres to establish Hukama Produce. Over nine years, they have had two landowners. Before the land was sold to his current landowner, Nkhoma said he considered buying land, but the process proved more challenging than he thought.

“What it takes for someone like Byron to find a place to farm and establish a food system is an extremely involved process,” said Richards. “It's not just learning how to obtain land, it's also about managing that land so it can be used for years and generations to come.”

Originally from Zimbabwe, Nkhoma is adamant about taking care of the land he leases and has applied knowledge from his home to ensure resilience. Hukama Produce prides itself in improving environmental health through sustainable farming practices such as compost and mulch application, drip irrigation and low till. An important pillar of the CALE project includes building capacity and providing technical assistance toward land conservation and climate resiliency.

In addition to land tenure, money and time are stressors for small farmers. When they are not working on the farm, Nkhoma and his wife are researching and applying for grants to improve their soils and protect their crops from pests. However, many grants for which Hukama Produce is eligible often have pressing deadlines that demand their immediate attention – cutting into valuable time that could be spent tending to the land or selling at farmer's markets.

Two of Hukama's goals include building and sustaining trust in the market and growing their operation. By partnering with Richards, Hukama Produce has direct access to technical assistance focused on grant writing and conservation to increase ecosystem health and build tenure.

Agricultural land tenure is the arrangement, rights, and responsibilities centered around use, management, and ownership of agricultural land and resources. Building land tenure means that farmers have a stable place to grow their crops and build environmental sustainability without risk of having to move their operations.

While the CALE project boosts support for historically underserved community members hoping to own or manage land, it prioritizes land use for food production as a reinvestment into the greater community.

Eager to bring realities like Nhkoma's to light, Richards partnered with Keith Nathaniel, UCCE director for Los Angeles County, who co-coordinated the Western Extension Leadership Development conference held in San Diego the week of Sept. 23-27. WELD unites Cooperative Extension faculty, agents, advisors, educators and specialists from the western region of the United States for a two-year leadership development program.

While in San Diego, WELD participants joined Richards for a tour of Hukama Produce and learned directly from Nkhoma about opportunities and threats as a small farmer. The tour ended with participants in a circle, sharing how their professional roles can offer support to Hukama Produce and other small farms.

“We grow food so that we can feed the community,” said Nkhoma. “When we feed others, we build relationships. That's what ‘hukama' means – to grow relationships.”

If you operate or know of a small farm in Southern California and would like to be involved with or receive regular updates about the CALE project, please contact Chandra Richards at cmrichards@ucanr.edu.

If you are interested in applying for the Land Equity Project Manager position, please visit https://ucanr.edu/About/Jobs/?jobnum=2894 for details. 

4-H ag tech breakfast to support next generation of leaders, innovators

Event at FIRA USA in Yolo County includes look at agricultural robotics, automation

The FIRA USA ag tech conference, Oct. 22-24 in Woodland, showcases the latest robotics and automation innovations. A special breakfast during the event will support tomorrow's leaders, scientists and engineers who will realize the potential of those technologies.

Proceeds from the breakfast (Thursday, Oct. 24, 7:30 to 9 a.m. at the Yolo County Fairgrounds) will benefit higher education scholarships for 4-H youth participants interested in applying technology to a wide array of agricultural practices.

During the breakfast, attendees will hear from 4-H alumni – including Glenda Humiston, University of California vice president for agriculture and natural resources – on the impact of their participation in the program.

As a leading nationwide youth-development organization, 4-H delivers research-based, positive youth development practices through its community-based programs. Youth gain life and work readiness skills through hands-on projects. Studies have shown that youth who engage with 4-H programs are more likely to:

• Achieve academically
• Serve in leadership roles in school and community
• Engage in some form of community service

“4-H clubs, project teams and after-school programs develop skills in areas ranging from animal science to robotics, and from natural resources to coding,” said California 4-H Director Kimberly Sinclair Holmes, who will speak at the breakfast. “Scholarships help ensure those seeds of interest and passion blossom into meaningful careers that contribute to agriculture and society.”

Tickets are $100 each and can be purchased at https://bit.ly/4-HFIRAEvent.

The ticket includes all-day access to FIRA USA, touted as “the largest robot playground in the world,” where attendees can get an up-close look at laser weeders, autonomous harvesters, drone applications and a host of other ag tech innovations.

FIRA USA is a collaboration of GOFAR (Global Organization for Agricultural Robotics), Western Growers, UC Agriculture and Natural Resources, and The VINE.

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