Author Archives: David Doll

About David Doll

David Doll is a University of California Cooperative Extension nut crop pomology farm advisor for Merced County.

Almond Orchard Row Width

I am commonly asked about optimal orchard row width for almond orchards in order to maximize production and returns.  With the goal being to maximize production as early as possible, many operations want to plant rows as close as possible, but wide enough to provide access for equipment.  Therefore, most operations within California plant between 21-22,’ […]

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Postharvest is a Good Time for Boron Foliar Sprays

Boron is a critical micronutrient for fruit set.  Work has shown that yield can be reduced when boron hull concentrations fall below 80 ppm. In order to determine deficiency, a hull analysis should be taken to determine tree boron status. Leaf tissue levels are not consistent in providing boron status. Applications of boron should occur to the ground if […]

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