January 2021 Newsletter Archives - Page 2 of 2 - West Coast Nut

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January 2021 Newsletter



Dealing with a Drier December


Much of California’s Central Valley is ending the year on a relatively dry note. Dry Decembers are not new, but going into 2021, this slow start in the rainy season means growers have to think about turning on the pumps or competing for scarce surface water supplies to irrigate their orchards. Allan Fulton, UCCE irrigation advisor emeritus, said in a Growing the Valley podcast episode that evapotranspiration reports normally cease by mid–October when rainfall exceeds tree needs. Due to a lack of significant rainfall, the weekly reports were going out through mid-November. “There were a lot of zeros in November...

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Warmer Winters Signal Adjustments in Pistachio Production


Warmer winters may signal changes in San Joaquin Valley pistachio production. Katherine Jarvis-Shean, UCCE orchard systems advisor in Sacramento, Solano and Yolo counties, outlined what warmer winters could mean for pistachio production in her presentation for the 2020 Pistachio Short Course. Jarvis-Shean said more low-chill winters are in store for growers. The predominant pistachio variety now grown in California, Kerman, may not be an appropriate variety for the San Joaquin Valley in 30 to 40 years, she said. Dormancy breaking materials may be the solution for low chill in the short term, Jarvis-Shean added, but new low-chill varieties will be...

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