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2021 Presentations and Proceedings

California Plant and Soil Conference
February 1-3, 2021
Virtual Event by Zoom

Monday, February 1

View Monday's recorded presentations here

Tuesday, February 2

View Tuesday's recorded presentations here

Wednesday, February 3

View Wednesday's recorded presentations here

Monday, February 1

8:00 AM

Eric Ellison, CA-ASA President, Introduction

Special Session: COVID-19 Impacts
Chair: Jeff Dahlberg

  • 0.75 CEU (CCA-PD)

8:10

Opening Remarks

8:15

Economic Impacts of the Pandemic on California Crop Agriculture: Assessment of the Data and the Path ForwardDaniel Sumner, UC Agricultural Issues Center, UC Davis (view presentation slides)

Session 1: Automation in Agriculture
Chairs: Jeff Dahlberg and Mae Culumber

  • 1.5 CEU (CCA-CM)

9:00

Opening RemarksJeff Dahlberg, Kearney Agricultural Research & Extension Center, ANR

9:05

Challenges and Opportunities for Artificial Intelligence and Automation in the US SouthwestElia Scudiero, Dept. of Environmental Science, UC Riverside

9:30

Prospects of Autonomous SprayingPeter Larbi, Kearney Agricultural Research & Extension Center, ANR

9:55

Robotic Harvest-aid TechnologiesStavros Vougioukas, Dept. of Biological and Agricultural Engineering, UC Davis (view presentation slides)

10:20

Break

Session 2: Remote Sensing
Chairs: Florence Cassel and Michael Cahn

  • 1.5 CEU (CCA: 0.5 SW, 0.5 CM, 0.5 NM)
  • 1.0 CEU (CURES: 0.5 Other, 0.5 NM)

10:35

Opening RemarksMichael Cahn, UCCE Monterey County, ANR

10:40

Applications of Remote Sensing for Irrigation Management in CaliforniaForrest Melton, NASA and Lee Johnson, CSU Monterey Bay (view presentation slides)

11:05

High Resolution Aerial Imagery to Assist in the Production of Cool Season VegetablesJeff Orrey, GeoVisual (view presentation slides)

11:30

High Resolution Nitrogen Monitoring in Vineyard—Alireza Pourreza, Dept. of Biological and Agricultural Engineering, UC Davis (view presentation slides)

11:55

Break

2021 California Chapter of the American Society of Agronomy Honoree Presentations

12:25 PM

Opening RemarksKaren Lowell

12:30

Presentation to Marsha L. Campbell-MathewsCarol Frate, presenter

1:00

Presentation to Keith BackmanNat Dellavalle, presenter

1:30

Break

Student Research Lightning Presentations and Competition
Chairs: Nick Clark and Mark Cady

2:00

Undergraduate, M.S., and PhD student presentations

2:05

Evaluation of Sorghum (Sorghum bicolor) Yield and Nutritional Quality to Varying Irrigation and Nitrogen Fertilization Regimes, in Comparison with Corn (Zea mays)Ramandeep K. Brar

2:12

Impacts of Native and Introduced Cover Crops in a Table Grape Vineyard in the San Joaquin ValleyMargaret R. Fernando

2:19

Compost Effects on Agroecosystem Soil C and N Cycling DynamicsSavannah Haas

2:26

Insecticide Resistance Monitoring in California Populations of Alfalfa Weevil (Hypera postica)Madison Hendrick

2:33

Statewide Collaborative Needs Assessment for California AgronomyJessica Kanter

2:40

Vittatalactone, an Aggregation Pheromone from the East, Attracts Cucumber Beetles from the WestJasmin Ramirez Bonilla

2:47

The Effect of Grapevine Age (Vitis vinifera L. cv. Zinfandel) on Vine Performance in the Central Coast of CaliforniaVegas Riffle

2:54

Crop Rotations in California Rice Systems – Baseline Assessment of Challenges and OpportunitiesSara Rosenberg

3:01

Response of Alfalfa Varieties to Saline, Sub-Surface Drip Irrigation: How to Account for Spatial Variability in Soil Salinity in Variety Comparisons?Simarjeet Singh

3:08

The Effect of Different Crop Residues on Soil Nitrogen TurnoverSuzette Turner

3:15

Impact of Airjection® Irrigation on Glutathione Levels in TomatoesChaitanya Muraka

3:22

Adjourn

Top of page

 

Tuesday, February 2

Session 3: Irrigation Optimization
Chairs: Michael Cahn and Khaled Bali

  • 1.5 CEU (CCA-SW)
  • 1.5 CEU (CURES-Other)

8:00 AM

Opening RemarksKhaled Bali, Kearney Agricultural Research & Extension Center, ANR

8:05

Updated Information of Water Use of Micro-irrigated Pistachio Grown on Non-saline and Increasingly Salt-Affected Soils in the San Joaquin Valley of CaliforniaDaniele Zaccaria, Dept. of Land Air and Water Resources, UC Davis (view presentation slides)

8:30

Practical Uses of Evapotranspiration Data for Irrigation SchedulingKosana Suvocarev, Dept. of Land Air and Water Resources, UC Davis

8:55

Precision Water Management in Western Great Plains Irrigated AgricultureRaj Khosla, Dept. of Agronomy, Kansas State University

9:20

Break

Session 4: Nutrient Management
Chairs: Nick Clark and Mark Cady

  • 1.5 CEU (CCA-NM)
  • 1.5 CEU (CURES-NM)

9:35

Opening RemarksNick Clark, UCCE Kings, Tulare, & Fresno Counties, ANR

9:40

Crops Subsurface Drip Irrigation System Utilizing Dairy Manure Effluent within Dairy Forage CropsJohn Cardoza, Sustainable Conservation (view presentation slides)

10:05

Soil Organic Matter as a Source of Plant-available NitrogenDaniel Geisseler, Dept. of Land Air and Water Resources, UC Davis (view presentation slides)

10:30

Early Nitrogen Fertilization is Important on First-year Second Generation Almond Trees Following Whole Orchard Recycling—Brent Holtz, UCCE San Joaquin County, ANR (view presentation slides)

10:55

Break

Session 5: Cover Cropping
Chairs: Gina Colfer, Karen Lowell, and Lauren Hale

  • 1.5 CEU (CCA-CM)
  • 0.5 CEU (CURES-Other)

11:10

Opening RemarksKaren Lowell

11:15

Managing Cover Crops in Orchards: A Case Study of Aphid Populations in Pecan Orchard with Cover CropsRex Dufour, National Center for Appropriate Technology (view presentation slides)

11:40

Comparing Cover Crop Mixtures to Cover Crop MonoculturesAngela Florence (view presentation slides)

12:05 PM

Planting Cover Crop into Vegetable Crop ResidueGina Colfer, Wilbur Ellis (view presentation slides)

12:30

Break

CA-ASA Business Meeting
Eric Ellison presiding

1:00

Opening Business Items

1:20

Announcement of Student Scholarship Award

1:30

Announcement of Student Lightning Presentation Awards

1:45

Closing Business Items

Top of page

Wednesday, February 3

Session 6: Evaluation and Criteria for Assessing Biological Inputs
Chair: Lauren Hale

  • 1.5 CEU (CCA: 1.0 NM, 0.5 PM)
  • 1.0 CEU (DPR-Other)

8:00 AM

Opening RemarksLauren Hale, USDA-ARS

8:05

Evaluation and Criteria for Assessing Biofertilizers and BiostimulantsPatrick Brown, Dept. of Plant Sciences, UC Davis (view presentation slides)

8:30

Development, Implementation, and Integration of Biologicals in Pest and Nutrient ManagementJacob Parnell and Roger Bowman, Novozymes (view presentation slides)

8:55

Management of Soil-borne Plant Pathogens with Organic AmendmentsAmisha Poret-Peterson, USDA-ARS (view presentation slides)

9:20

Break

Session 7: Practical Indicators of Soil Health
Chairs: Mae Culumber, Lauren Hale, and Karen Lowell

  • 1.5 CEU (CCA: 1.0 SW, 0.5 NM)
  • 0.5 CEU (CURES-NM)

9:35

Opening RemarksMae Culumber, UCCE Fresno County, ANR

9:40

Biological Soil Health: What We Can and Cannot Learn from Common Microbial IndicatorsLauren Hale, USDA ARS (view presentation slides)

10:05

The Role of Soil Organic Matter in Coupling the Carbon and Nitrogen Cycles in OrchardsSat Darshan Khalsa, Dept. of Plant Sciences, UC Davis (view presentation slides)

10:30

Evaluating Soil Physical Properties in Response to Soil ManagementSarah Light, UCCE Sutter-Yuba Counties, ANR

10:55

Break

Session 8: Pest Management
Chairs: Jacob Wenger and Gina Colfer

  • 1.5 CEU (CCA-PM)
  • 1.5 CEU (DPR-Other)

11:10

Opening RemarksJacob Wenger

11:15

Alternatives to Neonicotinoid and Broad Spectrum Alternatives for Arthropod Control in BerriesMark Bolda, UCCE Santa Cruz County, ANR (view presentation slides)

11:40

Neonicotinoid Alternatives in CitrusFrank Byrne, Dept. of Entomology, UC Riverside (view presentation slides)

12:05 PM

Is IPM Possible? Alternative Control Tactics in Vegetables from California Central CoastAlejandro Del-Pozo, Dept. of Entomology, Virginia Polytechnic Institute and State University (view presentation slides)

END OF CONFERENCE

Continuing Education Units (CEUS)

California Department of Pesticide Regulation (DPR)

Total DPR CEUs (approved): 2.5 hours of "Other"
Course ID: M-0238-21

Certified Crop Adviser (CCA)

Categories:

  • Nutrient Management: 3.5
  • Soil & Water Management: 3.0
  • Integrated Pest Management: 2.0
  • Crop Management: 3.5
  • Professional Development: 0.75

Total CCA CEUs (approved): 12.75 hours

Coalition for Urban Rural Environmental Stewardship (CURES)

Total CURES CEUs (approved): 5.0 hours