SACRAMENTO — The California Department of Food and Agriculture (CDFA) Fertilizer Research and Education Program (FREP) is announcing $4.14 million in grant funding to agricultural organizations and universities.
The funding includes $3 million for the University of California, Agricultural and Natural Resources (UCANR) to conduct targeted nitrogen and irrigation education and training in California’s Central Valley and Central Coast and $1.14 million for five research and education projects to advance California growers’ understanding and implementation of improved nitrogen and irrigation management practices.
Summary of Funded Projects:
Targeted Nitrogen and Irrigation Education and Training in California’s Nitrate Impacted Regions
Doug Parker and Khaled Bali – UCANR
This project has been awarded $3 million to hire six extension personnel whose work will be devoted to administering on-farm demonstrations and interactive trainings and workshops in nitrogen and irrigation management. These extension personnel will collaborate with local grower coalitions to focus resources on high-priority areas, crops and growers, as determined by nitrogen reporting data. Additionally, personnel will work with growers to gain their perspective on the irrigation and nutrient needs of their individual operations and assist them with addressing those needs.
Nitrogen Fertilizer and Irrigation Best Management Practices for Low Desert Sudangrass Production Systems
Oli Bachie – University of California Cooperative Extension, San Diego, Riverside and Imperial counties
This $243,331 project will develop improved nitrogen and irrigation management strategies for sudangrass production in the low desert region, which is the top sudangrass-producing region in California with over 50,000 acres. The improved management strategies developed by this project will help growers reduce nitrogen loss to the environment and produce a high-yielding forage crop with a desirable nutritive value.
Quantify and Model Overlooked Pathways of Nitrogen Loss from Organic Inputs Across Contrasting Soil Types
Timothy Bowles and Hannah Waterhouse – University of California, Berkley; Eric Brennan – U.S. Department of Agriculture, Agricultural Research Service; Bhavna Arora – Lawrence Berkeley National Laboratory
With $223,568 awarded, this project aims to assist growers and agricultural consultants on the Central Coast with determining the right time and rate for compost applications in specific soil types, while preserving groundwater quality. Field work, lab incubations, column experiments and ecosystem modeling will be used to evaluate the impacts of compost applications on nitrogen cycling and loss. Results from this project will help inform both organic and conventional growers how to properly apply compost to support their production goals while minimizing nitrogen losses.
Nutrient Management and Irrigation Efficiency Outreach and Education for Latino and Southeast Asian Farmers
Carmen Carrasco and Tom Stein – American Farmland Trust
Many underserved farmers and farm workers need irrigation and nitrogen management information and technical assistance services. This project has been awarded $229,981 to overcome language barriers and other access challenges for some farmers. The applicants will deliver on-farm tailgates, business development trainings and radio broadcasts to increase the adoption of best management practices. Efforts will be carried out in counties in the Central Valley and Central Coast and will target Latino and Southeast Asian Farmers.
Distributed Water and Fertilizer Delivery for Minimizing Nitrogen Losses by Leaching and Volatilization
Teamrat Ghezzehei and Tapan Pathak – University of California, Merced; Khaled Bali – UCANR
This $218,941 project will test a novel nitrogen and irrigation management application strategy. Utilizing two lines of drip irrigation to decouple the distribution of nutrients and water to the crop, this strategy addresses one of the major pathways of nitrogen loss: leaching. Results from this project will provide growers with a scalable approach to meeting crop nutrient and irrigation requirements while reducing nitrogen losses.
Optimizing Nitrogen Fertilizer Concentrations in Vegetable Transplant Production
Lorence Oki and Bruno Pitton – University of California, Davis; Don Merhaut – University of California, Riverside
This project has been awarded $224,691 to determine optimal nitrogen concentrations for the top five vegetable transplant crops in California. Researchers will measure nitrogen uptake and water use to fine tune nitrogen fertilization guidelines for vegetable transplant producers. Guidelines developed through this project will help growers increase nitrogen-use efficiency and economic profitability, while maintaining high quality yields.
–California Department of Food and Agriculture