Your source for orchard news & information in the Sacramento Valley
Allan Fulton, UCCE Water Resources Advisor, Tehama, Shasta, Glenn and Colusa Counties; and Luke Milliron, UCCE Orchards Advisor, Butte, Tehama and Glenn Counties. Advanced guidelines for almond are provided in Table 1 (below). These guidelines consider the actual orchard measurements … Continue reading
Allan Fulton, UCCE Irrigation and Water Resources Advisor, Tehama, Colusa, Glenn & Shasta Counties; Luke Milliron, UCCE Orchards Advisor, Butte, Tehama & Glenn Counties The dormant winter season is a time when evapotranspiration (ET) is low and it is an opportunity … Continue reading
Allan Fulton, UCCE Water Resources Advisor, Tehama, Glenn, and Colusa Counties; Luke Milliron, UCCE Farm Advisor, Butte, Glenn and Tehama Counties & Franz Niederholzer, UCCE Farm Advisor, Colusa and Sutter/Yuba Counties Tree and crop development progresses through multiple phases during the season … Continue reading
Irrigation Evapotranspiration (ET) Report for Tehama, Butte and Colusa county CIMIS stations. Continue reading
Consistent technique helps improve the accuracy of stem water potential (SWP) measurements. Keep reading for tips on bagging, measuring, and properly determining the SWP endpoint. Continue reading
Allan Fulton, UCCE Water Resources Advisor, Tehama, Shasta, Glenn and Colusa Counties; and Luke Milliron, UCCE Orchards Advisor, Butte, Tehama and Glenn Counties. Advanced guidelines for walnut are provided in Table 1 (below). These guidelines consider the actual orchard measurements … Continue reading
Allan Fulton, UCCE Water Resources Advisor, Tehama, Shasta, Glenn and Colusa Counties; and Luke Milliron, UCCE Orchards Advisor, Butte, Tehama and Glenn Counties. Experienced Pressure Chambers Users As a person gains experience with using the pressure chamber, they become more … Continue reading
Allan Fulton, UCCE Water Resources Advisor, Tehama, Shasta, Glenn and Colusa Counties; and Luke Milliron, UCCE Orchards Advisor, Butte, Tehama and Glenn Counties. SWP Levels Vary Among Orchard Crops What do the pressure chamber measurements mean? The range in stem … Continue reading
Continue to brush up on your pressure chamber technique with tips on selecting leaves for SWP measurement, weather conditions, and other FAQs. Continue reading
Stem water potential is a direct measure of water tension (negative pressure) within the plant. Continue reading to learn more about the basic concept of stem water potential and measurement in the field. Continue reading
Irrigated agriculture acreage in the northern Sacramento Valley has grown substantially over the past decade, with gains largely driven by new orchard plantings. Despite these substantial gains in irrigated agriculture, actual water demand has remained relatively stable. This video showcases many irrigation management technologies on-display at a walnut irrigation field day conducted in June 2018. Continue reading
Visual cues of crop stress are among the most basic observations that can be used to manage irrigation in orchard crops. However, these cues can be somewhat subjective and are often expressed after plant stress is higher than desired. Measuring midday stem water potential (SWP) using a pressure chamber is a quantitative method for evaluating plant water status. Continue reading
Irrigation Evapotranspiration (ET) Report for Tehama, Butte and Colusa county CIMIS stations. Continue reading
Droughty winters prompt questions about winter irrigation in orchards. The questions seem simple: Should I irrigate this winter? If so, when should I irrigate? How much water should I apply? The answers to these questions aren’t quite so simple. Continue reading
Irrigation Evapotranspiration (ET) Report for Tehama, Butte and Colusa county CIMIS stations. Continue reading