UC ANR is committed to providing an accessible and inclusive web experience for all users. If you encounter an accessibility barrier or need content in an alternative or remediated accessible format, please contact anraccessibility@ucanr.edu.
Determining the water requirements of plants falls into three broad categories of technology - plant-based, soil-based and weather-based. Many of these technologies are proven and have been in use for years. Others are more experimental and have not been tested fully.
There are many ways of measuring soil moisture status - neutron probe, tensiometers, electrical resistance blocks, etc. - all of which have some limitations.
Despite the rains we have had this year, irrigated agriculture must always contend with salts. All waters, even rain water, have some salts dissolved in them, so all could be called saline. The term saline is restricted to waters with concentrations that could cause harm to plants or people.
"We don't need to irrigate, it's winter." This is a commonly held idea, and many years it is true. Adequately timed rains will often meet the needs of avocado trees during the winter period, and in times like last year, even satisfy much of the spring requirement.
B.A. Faber & A.J. Downer J.A. Menge University of California Plant Pathology Cooperative Extension University of California 669 County Square Dr. Riverside, CA 92527 Ventura, CA 93003 USA USA Keywords: Citrus sinensis, C.
Oil Content The main criteria and most reliable method for determining maturity of avocados in California is by oil content. California state law has established minimum oil requirements. Oil content is determined by laboratory test and can be made by most marketing organizations.
Avocados are fine salad fruit from the tropics to Mexico and Central America. Many home gardeners find it difficult to determine when avocados from their backyard trees are ready to pick and use.
