Archive Nut, Prune and Olive Programs

UCCE recognizes that post-fire recovery can be a daunting process and express our sympathy to those who have been impacted by fire and hope you find these resources valuable. Please feel free to reach out if you have questions that these resources do not answer.

Please consider donating to North Coast Viticulture by selecting UCCE North Coast Viticulture in the 'Designation' drop-down box Click Here to Donate Gift donations to UC Cooperative Extension's North Coast Viticulture program help fund valuable wine and grape related research and supports community...

Donate Today Please consider donating to North Coast Viticulture by selecting UCCE North Coast Viticulture in the 'Designation' drop-down box Click Here to Donate Gift donations to UC Cooperative Extension's North Coast Viticulture program help fund valuable wine and grape related research and suppo...

The Climate Smart Ag Specialist serves as a technical service provider for CDFA Climate Smart Agriculture grant programs in Sonoma, Marin, and Mendocino Counties.

Soil Sampling Protocol - Healthy Soils Program verified Web Soil Survey - Check out your soil types Soil Testing on Organic Dairies - Plan how you will test your soil NRCS-In-Field Soil Health Assessment - Test your soil health at home without the lab...

California Department of Food and Ag Marin RCD Programs Sonoma RCD Programs Goldridge RCD Programs Mendocino RCD Programs Zero Foodprint - Restore and Compost Connector USDA Farm Service Agency...

Using Evapotranspiration Data to Determine Irrigation Time ET = The sum of Evaporation of water from the soil surface plus Transpiration (water loss) from (primarily) leaves of plants. A: ETo = "Reference ET" = The amount of full water use by a well irrigated, mowed grass.

When to start irrigating Vine leaf water potential (LWP) is an indirect measure of vine water status that is usually monitored weekly prior to the onset of irrigation. LWP is most accurately measured with a pressure chamber device. Units of LWP are negative bars or megapascals (MPa).

Vineyard Irrigation Scheduling Worksheet (Interactive) This worksheet provides the means to calculate the amount of water to apply in a winegrape vineyard based on the deficit irrigation strategy fully detailed in the publication "Deficit Irrigation of Quality Winegrapes Using Micro-Irrigation Techn...

How to Calculate Distribution Uniformity and Adjust Irrigation RequirementsDistribution uniformity is expressed as a percentage, and is a relative index of the variability between emitters in an irrigation block.  Distribution uniformity is defined as the average discharge of 25% of the sampled emitters…