- Author: Ben A Faber
Informational Videos Covering Fertilizer Application through Irrigation Water
Now Available in English and Spanish
Nicole Nunes FREP Grant Program
Through a grant from the Fertilizer Research and Education Program (FREP), Cal Poly's Irrigation Training and Research Center (ITRC) has developed a series of informational videos covering chemicals, application hardware, techniques, and timing of fertilizer application through irrigation water.
The videos are based on information provided in the Fertigation book developed by ITRC and updated in 2019. The Fertigation book is also available in English and Spanish and can be downloaded for free from the ITRC website: https://www.itrc.org/books/index.html
The 22 informational videos are available on YouTube or through the ITRC website and cover the following topics:
- Overview
- Basic Fertilizer Chemistry and Vocabulary
- Nitrogen and the Environment
- Basic Soil Principles
- Crop Fertilizer Requirements
- Testing of Plants Soil and Water
- Fertilizer Labels Characteristics and Usage
- Nitrogen Conversions
- Volatilization of Ammonia from Irrigation Water
- Irrigation System Uniformity and Efficiency
- Safety
- Purging Media Tanks of Chemicals
- Calibration, Titration, and Travel Time
- Varying Venturi Injection Rates
- Chemigation for Soil Infiltration Problems
- SO2 Generators (Sulfur Burners)
- Chemigation for Drip System Maintenance
- Incompatibility of Different Fertilizers
- Proportional Injection
- Fertilizer and Chemical Injection Devices
- Calibration of Fertilizer and Chemical Injectors
More Fertigation Resources Coming Soon
ITRC is developing the informational video series into a Fertigation Certificate Program available to the irrigation and fertilizer industry. The videos will be coupled with information and suggested readings from the Fertigation book to create a comprehensive online course. Course participation will be verified with an exam on the presented materials and successful participants will receive a certificate of completion.
Stay tuned for more information regarding the availability of the certification program.
To learn more about this project and other current and completed FREP projects please visit: https://www.cdfa.ca.gov/is/ffldrs/frep/Research.html
- Author: Bodil Cass
F\ig Wax Scale has recently been detected in the environment in the San Diego County. This insect is commonly intercepted at ports of entry, especially on shipments of palms, but has not previously established a reproductive population in California to our knowledge.
Fig wax scale is an A-rated, actionable invasive pest by CDFA, due to its high potential to damage fresh fruit production through lowering yield, increased production costs, disruption of export markets, and vectoring of plant viruses including grape vine leaf-roll virus. It is a polyphagous phloem feeder and a potentially devastating pest of many high-value crops including almond, grape, citrus, pistachio, avocado, cotton,fig,palms,pear,and ornamentals.In the USA it is currently only found in Florida, although it is distributed throughout much of the rest of the world and frequently affects citrus and fig production in Europe. The environmental conditions throughout much of California are considered favorable for this scale to establish if it is not eradicated and prevented from re-entering.
For more on this scale and other recent topics, check out the Topics in Subtropics Newsletter:
https://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=60446
- Author: Ben A Faber
Statewide citrus bearing acreage relatively stable for past three seasons
The Pacific Regional Office of the USDA's National Agricultural Statistics Service (NASS) conducts an acreage survey of California citrus growers as funding is available. The purpose of this survey is to provide bi-annual citrus acreage, which includes information on new plantings and removals. It is the continuation of a long series of industry-funded Citrus Acreage surveys.
This report consists of two parts:
- Table 1 shows estimated statewide bearing acreage for the 2020-21, 2021-22 and 2022-23 seasons.
- Tables 2, 3, 4 and 5 show detailed acreage data by type, variety, and year planted -- as voluntarily reported by citrus growers and maintained in NASS' database.
With perfect information, the estimated statewide bearing acreage and the detailed acreage data would be the same. Generally, this will not be the case for the following reasons:
- A voluntary survey of approximately 5,000 citrus growers is unlikely to ever attain 100 percent completeness.
- It is difficult for USDA/NASS to detect growers who are planting citrus for the first time.
Click here for a larger image.
Click here to read the full report.
Source: ccqc.org/wp-content
- Author: Ben A Faber
Avocado Sunblotch Viroid (ASBVd)
Unlock the Secrets to Healthy Avocados: Learn
about Avocado Sunblotch Viroid
Presentations:
Andrew Geering: Prevention, surveillance and control of avocado sunblotch in
Australia
Fatemeh Khodadadi: Understanding ASBVd: from discovery to diagnostic
hurdles
Peggy Mauk: Protecting California's avocado genetic resources through
sunblotch viroid detection
Mehdi Kamali: Rapid and sensitive detection of Avocado Sunblotch Viroid
Disease (ASBVd) using our digital methodology
September 20, 2024
9am-12:30pm
United Water,1701 N. Lombard ST., Oxnard
Registration link:
https://forms.gle/12LxUUdkPb8DmNdm8
Fatemeh Khodadadi
fatemehk@ucr.edu
(845) 901-3046
Ben Faber
bafaber@ucanr.edu
- Author: Ben A Faber
Avocado Café
September 12, 2024
8:00 –10:00 AM PST
Healthy soils for productive and resilient farms:
the untapped potential under our feet
Joint presentation by
Dr. Amélie Gaudin
Associate Professor and Endowed Chair in Agroecology Department of Plant Sciences, UC Davis
Dr. Kate Scow
Distinguished Professor of Soil Science and Microbial Ecology, Dept. of Land, Air and Water Resources, UC Davis
Abstract:There is great interest in building soil health to enhance sustainability and resilience in an uncertain future. We will discuss the current state of knowledge of soil health in CA and other global agricultural regions and the relevance of soil biodiversity to support soil functions that could benefit growers.
Register for this virtual meeting at
cafeavos@gmail.com