Posts Tagged: irrigation

Irrigation and Nutrient Training Workshop

Irrigation and Nutrient Management Plan (INMP) Self-Certification Training

 

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Hosted by: VCAILG   Date: August 29th and 30th   Time: 9:00 am - 12:00 pm both days   Description: Growers are invited to participate in this 6-hour training to acquire the credentials needed to develop self-certified Irrigation and Nutrient Management Plan (INMP) for their farms. Under the Ag Order, all growers are required to develop certified INMP(s) by March 1, 2025. Growers who choose not to attend the self-certification training must work with either a CCA or NRCS to certify their INMP(s). At the end of the Day 2 session, attendees will be given a 30-question multiple choice test, which requires a passing score of 70% or higher to receive self-certification credentials. Additionally, a training session with simultaneous Spanish translation will be offered in late 2024 or early 2025. If you attended a previous self-certification training, your certification is still valid and you do not need to attend again. However, we do recommend attending the training again (without needing to retake the test) to learn about changes to the requirements under the Ag Order and the new Irrigation and Nutrient Management Plan (INMP) and Irrigation and Nutrient Management Report (INMR) templates. A condensed refresher course for people who previously attended the full self-certification course will also be offered later this year. In-Person and Zoom attendance available In-Person Attendance: United Water Conservation District meeting room 1701 Lombard St, Oxnard

In-Person Attendance Register Here

!	Remote Attendance via Zoom

Zoom Attendance Register Here

!	Continuing Education 6 hours of VCAILG CEUs (pending Regional Board approval) 6 hours of Nitrogen Management Planning self-certification CEUs   For more information, refer to the agenda HERE.

 

irrigation double line citrus

Irrigation Resources

In a recent meeting the topic of where to go for irrigation information came up.  Well there's no substitute for attending a class in irrigation, such as offered at Cal Poly SLO (http://www.itrc.org/classes/iseclass.htm ,

but here's some written sources to get you started thinking.

http://ciwr.ucanr.edu/california_drought_expertise/droughttips/

http://www.salinitymanagement.org/Salinity%20Management%20Guide/ei/ei_1.html

http://www.avocadosource.com/tools/IrrigationCalculator.asp

http://lawr.ucdavis.edu/cooperative-extension/irrigation/manuals

http://lawr.ucdavis.edu/cooperative-extension/irrigation/drought-tips

http://biomet.ucdavis.edu/index.php/evapotranspiration-mainmenu-32

http://www.itrc.org/reports/

irrigation double line citrus

Microirrigation Clogging Troubleshooting Guide

Microirrigation systems include microsprinklers for tree crops, drip emitters for trees, vines, and some row crops, and drip tape for row and field crops. Microirrigation systems apply water to the soil through emitters that are installed along drip lines and contain very small flow passages. Microirrigation systems can apply water and fertilizers more uniformly than other irrigation methods. This uniformity results in potentially higher yields, higher revenue, and reduced irrigation operating costs.

Uniformity, a performance characteristic of irrigation systems, is a measure of the evenness of the applied water throughout the irrigation system. Distribution uniformity (DU), sometimes called emission uniformity (EU), is an index that describes how evenly or uniformly water is applied throughout the field.  A uniformity of 100% means the same amount of water was applied everywhere. Unfortunately, all irrigation systems apply water at a uniformity of less than 100%, and thus some parts of a field receive more water than others. Field evaluations have shown that microirrigation systems have the potential for higher uniformity than other irrigation methods. However, clogging reduces the uniformity of applied water in microirrigation systems, thus increasing the relative differences in applied water throughout a field.

The small flow passages in the emitters and microsprinklers make microirrigation systems highly susceptible to clogging. Clogging reduces the uniformity of the applied water and decreases the amount of applied water. Clogging also decreases the amount of salt leaching around the lateral line in saline soils.

The objective of this web site is to provide information to irrigators about the causes of clogging and the methods for preventing or correcting clogging problems in microirrigation systems. Among the topics covered are the sources of clogging, chlorination, preventing chemical precipitation, filtration, flushing, and monitoring microirrigation systems.

This web site is divided into sections to allow the users to more quickly access the information they want.  For example, if you already know you have a clogging problem and you want to solve it, go to the section Solutions to Existing Clogging Problems - "I have a problem and I want to solve it".

https://micromaintain.ucanr.edu/

 

avocado irrigation 2

Calculating Irrigation with CIMIS

Avocado Irrigation Calculator using CIMIS

(California Irrigation Management Information System)

Updated March 13, 2024

Gary S. Bender

Farm Advisor Emeritus – Subtropical Horticulture

UC Cooperative Extension – San Diego County

 

The irrigation requirement can be calculated each week by using CIMIS (California Irrigation Management Information System). CIMIS is a network of weather stations throughout California that takes daily information on evapotranspiration (ETo) of eight-inch tall grass and sends this ETo to a computer in Sacramento. ETo is basically the amount of water lost each day from this grass; it is calculated in inches of water.   You can download this information when you want to irrigate your avocados and put it into an “irrigation calculator”. This information will be multiplied by the crop coefficient developed for avocados by UC Cooperative Extension farm advisors and specialists . This will give you the amount of water lost each day by avocados through transpiration and evaporation from the soil surface. Then, assuming the weather doesn't change, you can replace that amount of water when you irrigate.

 

Follow the Attached Files "CMIS exercise" link below to see how it's done.

 

irrigation with double lines

HOW to IRRIGATE in ONE text

Microirrigation for Crop Production: Design, Operation, and Management, Second Edition is the latest release in this go-to foundational resource for the basics of engineering and the science of the design and operation of micoirrigation systems. This new edition includes novel methods for measurement and estimation of evapotranspiration, resource-efficient microirrigation design and operation, advanced irrigation scheduling methods and tools, novel methods and technology of microirrigation automation, monitoring and control, updates in crop salinity tolerance and leaching practices, variable rate irrigation, updates on the use of biological effluents and chemicals and pesticides to include safety and regulatory concerns.The revised book provides an understanding on the basic science needed to comprehend systems design, operation, management, maintenance, monitoring and performance evaluation.

Editors: James E. Ayars, Daniele Zaccaria, Khaled M. Bali

irrigATING CITRUS

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