Agriculture

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citrus root health

Getting to the Root of HLB

October 2, 2023
By Ben A Faber
Texas A&M AgriLife researchers have made a discovery that will help combat fastidious pathogens, which cost U.S. agriculture alone billions of dollars annually. Kranthi Mandadi, Ph.D., inspects a grapefruit for citrus greening. (Texas A&M AgriLife photo) For the past few years, Kranthi Mandadi, Ph.
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Thyme to Garden: Autumn Issue

October 1, 2023
Crocus Sativus By Karen Seroff When most gardeners hear the name crocus', they think of charming little bright purple and yellow flowers coming up through patches of snow heralding springtime.
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Mustard blend cover crop stand in a walnut orchard in March.
Mt. Diablo Region Crops: Article

Cover crop planting season is here

September 30, 2023
By Kamyar Aram
Autumn is in the air, and while it is still high season for harvest for many crops, shorter days and cooler temperatures inevitably bring to mind that winter prep tasks are not far off.
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Figure 1. Three models of flowmeters that use different mechanisms for measuring flow were evaluated for accuracy in measuring the volume of fertilizer pumped from a tank.
Salinas Valley Agriculture: Article

Evaluation of flowmeters for accurately metering liquid fertilizers

September 30, 2023
By Michael D Cahn
Growers will need to implement best management practices that reduce nitrate leaching losses on the Central Coast to comply with Agricultural Discharge Order 4.0. The use of drip irrigation has allowed many growers to be efficient with both water and nitrogen fertilizer.
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Figure 2. Applicator for dosing granular PAM into drainage ditches.
Salinas Valley Agriculture: Article

New approaches to using polyacrylamide (PAM) to reduce sediment and sediment bound pesticides and nutrients in runoff and improve chlorine efficacy: Part II—an auger applicator for treating irrigation runoff in farm ditches

September 29, 2023
By Michael D Cahn
Minimizing suspended sediments in irrigation runoff is desirable for several reasons. For growers reusing tailwater for watering their crops, they must assure that the water has minimal food safety risks by testing it for generic E coli and/or treating it with chlorine.
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citrus K deficiency
Topics in Subtropics: Article

Leaf Analysis Time of Year

September 29, 2023
By Ben A Faber
If you haven't done it yet, it's that time of year to be doing leaf analysis for citrus and avocados. Analysis prevents deficiency symptoms from appearing and maintains good yields, all else being well done.
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Figure 1: Broomrape species
a: Egyptian broomrape (left) grown in bio-control greenhouse with branched broomrape (right), b: branched broomrape, c: two color morphs of small broomrape, d: ivy broomrape e: dessert broomrape
UC Weed Science (weed control, management, ecology, and minutia): Article

Broomrape Species: ecological insights and economic significance

September 28, 2023
By Brad Hanson
The Orobanchaceae family comprises 270 holoparasitic species that cannot photosynthesize. Instead, they rely entirely on the host plant roots for nutrition, and can produce great numbers of minute, dust-like seeds that last for years in the soil.
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