- Author: Laura J. Van der Staay
(The following was taken from Jeff Mitchell's presentation.)
Jeff Mitchell, Cooperative Extension cropping systems specialist at the UC ANR Kearney Agricultural Research & Extension Center and in the Department of Plant Sciences at UC Davis specializing in vegetable cropping systems, irrigation management, soil quality, organic soil amendments, extension models, and postharvest physiology was a presenter at the 2015 STEM conference held at Reedley College on April 25, 2015. About 1300 middle and high school students from the local region came to learn about careers requiring an educational focus on science, technology, engineering, and/or math. Mitchell's workshop was called “SOIL: Get Your Hands Dirty!”
Mitchell shared how he became an extension specialist, emphasizing that broad life experiences can often help you discover your passion and lead to satisfying career choices.
Students learned that we will have an additional 3 billion people by 2050. This leads to the problem that the estimated food production demand from 2010 through 2050 will be 730 Exacal (an Exacal is 1018 calories), which is more than the demand we had over all of human history. Related problems are that we risk having a food production deficit and a water deficit. There is a linear relationship between soil organic matter (%) and available water content (%). So, if we need to increase our food production with finite resources, we need to keep our soil healthy and productive. Whichever country develops strategies and technologies that allow the soil health and soil water availability at the root zone to be maximized will be ahead in the race to feed the world.
Just like caring about our own health, we must care about the health of our natural resources. Mitchell shared that 2015 is the international year of soils with the motto, “healthy soils for a healthy life.” Innovative farmers and scientists are using the concept of soil health, which “has added principles and dimensions of soil biology and agroecology to our understanding and consideration of the overall health of the soil resource base. It is not easy to perfect a no-till or conservation agriculture tillage strategy, but once one succeeds, the soil health approach allows a farmer to “maximize profits and increase production while protecting [his or her] land.”
Students were posed the question, “Are there indications that soil function, soil quality, or soil health is declining in California?” This question can be answered by testable hypotheses, and is a good place for university/federal research support partnerships. “Is there evidence that water intake characteristics of soils might be improved? Is there evidence that the value of soil biodiversity may not be expressed or realized to some sort of optimal extent?... Is there evidence that soil water storage and movement are not what they might be for optimal water use efficiency and benefit?”
Mitchell noted that Dr. Dwayne Beck of the Dakota Lakes Research Farm commented that natural systems…
- Harvest the maximum amount of sunlight
- Leak very few nutrients, including CO2
- Have diversity
- Tend not to export nutrients
- Make maximum use of water and nutrients by having highly developed porosity and Mycorrhizae (VAM) webs
- Do not do tillage
Mitchell also noted that USDA NRCS states that managing for soil health includes…
- Minimizing soil disturbance
- Maximizing the diversity of plants in rotation/cover crops
- Keeping living roots in the soil as much as possible, and
- Keeping the soil covered with plants and plant residues at all times
… and will unlock the secrets of the soil.
Mitchell noted that there are many farmers, university scientists and USDA scientists studying conservation agriculture as a tool to meet the challenges of population growth. Conservation Agriculture
- Has developed to be a technically viable, sustainable, and economic alternative to current crop production practices
- Is gaining acceptance in many parts of the world as an alternative to both conventional agriculture and organic agriculture
- Is the integration of ecological management with modern, scientific, agricultural production
- Is not ‘business as usual,' based primarily or solely on maximizing yields
- It is based on optimizing yields and profits to achieve a balance of agricultural, economic and environmental benefits
- It advocates that the combined economic and social benefits gained from combining production and protecting the environment, including reduced input and labor costs, are greater than those from production alone.
Conservation agriculture strategies include
- Minimal soil disturbance
- Preservation of residues that provide permanent soil cover
- Diverse crop rotations
- Use of cover crops
- Integrated pest management
- Reliance on precision, highly efficient irrigation
- Controlled or limited mechanical traffic over agricultural soils
Mitchell noted that “More with less”…agriculture in the future will have to sustainably produce more food, feed, fiber and energy on less land through more efficient use of natural resources and with minimal impact on the environment in order to meet growing population demands. This will become a global imperative. In 2012, Beck stated that the USDA Agricultural Research Service National Program 216, Agricultural Systems Competitiveness and Sustainability is “The agronomic and ecological equivalent of the moon race of the 1960's…They did not achieve a successful landing by testing small incremental improvements in rocket design. They did it by having a specific goal and teams focused on developing the techniques required to achieve that goal.”
Therefore, if a student's passion is to benefit the world by ensuring that there is a sustainable, safe, affordable and abundant supply of nutritious food, feed, fiber, housing and water, then a career pathway in agricultural engineering, biological engineering, agronomy, soil science, plant science, genetics, entomology, nematology, plant pathology, agricultural economy, and other related STEM fields of study are all good choices.
Students were able to see the benefits of an ongoing conservation tillage trial that is being conducted at West Side Research & Extension Center. There were samples of conventional and conservation tillage soil. Students noted that the conservation tillage soil was able to hold its shape while soaking up water when dipped in the water, and that the conventional tillage soil dispersed into the water.
- Author: Megan G Osbourn
Programs such as 4-H and FFA are excellent training platforms for youth who raise livestock on a small scale. In the last two weeks nearly 800 youth across three different counties exhibited livestock at either the Yuba-Sutter Fair or the Nevada County Fair. Exhibitors ranging from 9-19 years old, have been working tirelessly over the last year to prepare project animals such as cattle, sheep, goats, poultry and swine for competition and market. The process involves more than feeding and grooming animals on a daily basis, which in itself is not always an easy task.
Jake Williams (15) of the Smartsville 4-H Club, recently exhibited and sold his seventh steer at the Yuba-Sutter Fair. As a way to market his steer, Williams, like many other exhibitors, hand-delivers letters to businesses and community members who will potentially support the Junior Livestock Auction. Such tasks develop public speaking and communication skills, and remind young people to keep the primary goal in sight. “The most important part of raising a steer is creating a quality product for the buyer,” says Williams. “It's a lot of fun and I've learned a lot, but it is definitely hard work.”
Upcoming educational opportunity:
Youth and adults looking for additional resources, can visit the 4-H Youth Development Program for free curriculum and project sheets pertaining to animal and environmental sciences. Guides for livestock care can be found for several animal species through the UC Davis, Veterinary Medicine Extension program.
- Author: Megan G Osbourn
Adaptation to changing weather and economic conditions is fundamental to farm and ranch survival but this year's drought is pushing variable adaptation strategies to their limit. The international community is closely watching how this dire situation is progressing in California and on June 19th the Canadian Broadcast Company (CBC) visited the Sierra Foothill Research & Extension Center (SFREC) to document how ranchers are adapting to these extreme events and the implications these events have on agriculture and ultimately food production worldwide. Filming involved capturing interviews of three ranchers to explore their perspectives as well as a tour of SFREC to examine potential adaptation strategies to drought.
Joe Fischer, cattle rancher and President of the Placer County Farm Bureau, told CBC the economic impacts and emotional toll of the drought on ranching families have forced ranchers to rethink their management strategies and find innovative ways to manage the land. “Ranchers tend to be profitable if the land is productive,” Fischer said. “We have to look ahead five to ten years or more and try to be as conservative as possible with our stocking rates. Under these conditions, we have a much smaller margin for error so we have to be more precise than ever with our management strategies.”
SFREC Director Jeremy James and Livestock and Natural resource Advisor Glenn Nader used SFERC as an opportunity to demonstrate how intensive grazing management, agricultural by-products and culling strategies could be deployed to mitigate some of the impacts of drought. Many producers with limited feed sources are utilizing agricultural by-products that are available in their area in order to sustain the nutritional requirements of their livestock. Nader, pointed out that almond hulls are high in energy and have limited protein, which allows cows to more efficiently digest hay and can limit the quantity of hay they need to consume. Nader warned that the almond hulls fed must contain a low level of almond shell, in order to avoid problems with rumen digestibility. Rice straw and rice bran are more local agricultural by-products that, under the right conditions, have been utilized as dietary supplements for cattle.
To view the proceedings from the January 29th SFREC Drought Workshop, click here.
- Author: Jeremy James
The annual California Grazing Academy held at UC SFREC and led by Roger Ingram, Nevada/Placer County UCCE Director and Livestock Advisor was once again a widely attended and engaging event. Over a third of an inch of rain cooled off the 24 participants that attended the two-day event that mixed lectures and hand-on activities to explore and demonstrate key principles that drive the ability of producers to be successful grass farmers. Topics included controlled grazing principles, water and mineral cycles, pasture cell design, rest/grazing periods, nutrition and supplementation as well as grazing planning and monitoring. Each participant had the opportunity to visually estimated carrying capacity, install electric fencing, move cows with calves into their designated paddocks, and watch the cattle consume pasture grass over a period of 24 hours. This annual training has remained hugely popular across California and the West with some participants coming as far as Utah to learn from UCCE and Roger Ingram. We looked forward to another year!
- Author: Maddison Easley
Producers from the Food and Farm Show filmed and interviewed multiple speakers at the Future of Farming and Ranching Forum at the Sierra Foothill Research and Extension Center on February 22nd. The Food and Farm Show highlights local agricultural events, news, and issues. They are part of Touchdown Productions, which films other regional activities like the “Game of the Week” on the local news channels.
Three episodes were released featuring the Future of Farming Ranching event at SFREC. Important speakers interviewed include Jamie Johansson, farmer and 2nd Vice President of the California Farm Bureau; Susan Hoek, 5th generation rancher in Penn Valley; and Roger Ingram, UCCE Farm Advisor for Placer and Nevada Counties.
These 30-minute videos give the viewer a taste of what the event covered. Click on the following links to watch:
Episode 1 – featuring the keynote speaker Jamie Johansson and the introduction
Episode 2 – interviews with Jamie Johansson and Roger Ingram
Episode 3 – featuring Sue Hoek speaking from experience about resource planning and preparing for the future
With media attention like this, SFREC is becoming more visible throughout the region. Collectively, the educational events occurring at all of the Research and Extension Centers help enforce the tangible impacts of UCANR within communities statewide.