- Author: Alexandra Stefancich
Look out for the return of FIT+ to SFREC in the upcoming year!
- Author: Nikolai Schweitzer
The Sierra Foothill Research and Extension Center in Browns Valley, CA utilizes 130 acres of summer irrigated pasture for cattle grazing. SFREC's irrigation water is supplied by a local water district via pipelines and open ditch distribution sources. The irrigation delivery system applies water through sprinklers, open ditches, and gated pipes. Each irrigated pasture at SFREC is managed for 1) Forage Production, 2) Water Quality, and 3) Soil Quality.
SFREC staff measures forage production in 15 enclosed cages throughout five different irrigated pastures. The treatments within each cage include leaving 4-6 inches of residual grass and measuring Total Forage Production (TFP). Guidelines for general irrigation and pasture management production based on past and current research recommend leaving 4 to 6 inches of residue/grass growth after each grazing period. The basis of this recommendation is to increase forage production (by leaving increased amounts of foliar surface area), improve root development, decrease weeds, cause less stress for forage grasses and increase water infiltration. Total Forage Production is measured by clipping the grass all the way to the ground. This center project is measuring the two treatments (4-6 inches & TFP) on their respective pounds/acre production. Each month (from April through October) forage is clipped from each cage, dried, and weighed (pounds/acre). After the samples are clipped, each enclosed area is leveled to its prescriptive treatment.
During the last two years of field sampling on irrigated pasture at SFREC, there was an increase in forage diversity in the Total Forage Production subplot. Clovers, birdsfoot trefoil, and filaree became increasingly abundant due to the increased sunlight and less crowding from competitive grasses. While the increase in clover and other forbes growth lends to an increase in forage quality, there is an overall decrease in forage production per acre in the TFP treatments when compared to the treatments with 4-6 inches of residual grass.
Numerous other factors can potentially impact irrigated pasture forage growth. Fertilization (rates, composition, timing), irrigation (frequency, amount, duration), grazing (stocking density, class/age of animal), species composition, physical structures (water location, loafing areas, rubbing zones, mineral location), soil properties, aspect, and slope, are other important components to manage or consider.
- Author: Megan G Osbourn
The field day kicked off with a keynote address by Congressman, John Garamendi (CA-3), who spoke with students about the roles they will be able to pursue within agriculture and food productution as they chart out their future careers. Garamendi encouraged his audience to think outside of the box when it comes to creating solutions to the many challenges agriculture will face in years to come.
Following this address the students rotated through five hands-on learning demonstrations developed by UC researchers that explored major topics in beef cattle and rangeland management. Dr. Nancy Martin, DVM, discussed health issues in beef cattle with Dr. John Angelos from the UC Davis School of Veterinary Medicine following up by highlighting his research in the development of a vaccine for pink eye in cattle. UCCE Farm Advisor, Jeff Stackhouse discussed the use of technology in managing livestock and wildlife, while Dr. Roberto Sainz of the UC Davis Department of Animal Science explored the ruminant digestive system. Roger Ingram, UCCE Advisor in Placer/Nevada/Yuba & Sutter counties demonstrated principles related to dryland and irrigated pasture management. Students had the opportunity to evaluate soil properties, classify rangeland plants and observe beef cattle grazing behavior.
This event was made possible by the following Sponsors: PG&E, Yuba-Sutter Farm Bureau, California Beef Council and Farm Credit West. We are grateful for this generous support. The time donated by FFA leaders and UC staff was instrumental in making the third year of this annual event a major success and a great opportunity for students to interact with ongoing research led by the University of California.
- Author: Rebecca Swanson, CSU, Chico Undergraduate Research Assistant
- Author: Kasey DeAtley, Assistant Professor of Animal and Range Science
Researchers in the College of Agriculture at CSU, Chico in collaboration with Sierra Nevada Brewing Company (Chico, CA), UC Cooperative Extension agents, Glenn Nader and Josh Davy, and the Sierra Foothill Research and Extension Center (SFREC) are working to determine the effect of supplementing nursing cows with either WBG or molasses tubs on cow body condition, reproduction, and calf performance.
The third and final supplement study will begin this November at SFREC; however, preliminary results indicate that WBG is an efficient source of protein for cows grazing winter annual rangeland. In addition to investigating this important nutritional interaction, this collaboration has provided an excellent outdoor classroom for Chico State students pursuing a degree in animal science and land resource management. Students are able to gain hands-on research experience by helping to collect animal performance data as well as vegetation samples from the pastures where the cows are grazing.
- Author: Alexandra Stefancich
Presentations focused on a wide variety of agricultural subjects including livestock, bees, bats, irrigation, nutrition, seed saving, wool spinning, cider pressing, soil health and much more. Participating organizations included the local FFA chapters, Nevada Irrigation District, Sierra Foothills Audubon, the 4-H Youth Development Program, UC Cooperative Extension and private agriculturalists.
The Sierra Foothill Research and Extension Center (SFREC) was involved with actively showing students how soil and sand can help filter impurities out of water through an experiment where Kool Aid (representing impure water) is poured through a variety of substrates. SFREC also taught students about watersheds, including how water flows through a watershed, and the areas in which water tends to accumulate.
Farm Day allows students the chance to see and truly connect with multiple aspects of our agricultural systems, an opportunity that many people take for granted. These hands-on activities offer students a path to discovering where their food, drink, and clothing really come from and how it is all connected to the world's ecosystems. Witnessing the interest and curiosity of the students as they traveled through the stations, was a sure sign of the event's success.
SFREC will also present to third grade students at the Yuba-Sutter Farm Day this Friday. Be on the lookout for an update next week!