Browse Irrigation Resources

Lynn Ketchum
Displaying 1 - 10 of 65 resources

Low energy precision application (LEPA) and low elevation spray application (LESA) trials in the Pacific Northwest

LEPA and LESA are alterations on a center pivot where the sprinklers are moved much closer to the ground, the spacing between sprinklers is reduced (more sprinklers), and water is emitted at very low pressures. It saves water (18%), it saves energy (less water pumped and pumped at a lower pressure), and it helps growers get better yields especially in areas where water is limiting. However, it has an increased propensity for runoff, and the sprinklers operating below the top of the canopy can require some management changes. In many cases energy savings alone can pay for the increased costs of the additional sprinklers and drop hose. However, the largest profit potential lies in the ability to get improved yields in areas that are water short or have large water losses to wind drift and evaporation.

By Troy Peters, Howard Neibling, Richard Stroh, Behnaz Molaei, Hanny Mehanna | Publication

New analysis reveals challenges for drought management in Oregon’s Willamette River Basin

Jul 15, 2019
In Oregon’s Willamette River Basin, managing water scarcity would be more effective if conservation measures were introduced in advance and upstream from the locations where droughts are likely to cause shortages, according to a new study.

By Chris Branam | News Story

Sensor Sprayers for Specialty Crop Production

Sensor-controlled spray systems can help growers use fewer chemicals and less water while maintaining good pest control. Learn about the pros and cons of different types of sensor sprayers.

By Robin Rosetta, Jay Pscheidt, Lloyd Nackley | OSU Extension Catalog

Bees, Seeds, and Water Beads

Central Oregon is a global mecca for vegetable seed. Learn how Oregon State research has crafted a unique balance between honeybees, pheromones, irrigation, and farming to grow vegetable seeds better than almost anywhere in the world.

By Rhonda Simmons | Video

Management of grapevine water status under irrigated and non-irrigated conditions

Information on vineyard water management, focusing on when to initiate irrigation.

By Alexander Levin, | Article

Traveling Big Gun Calibration Checklist

Checklist for calibrating a traveling big gun irrigation system.

Fact Sheet

Deficit irrigation of a diverse irrigated rotation: Jake Madison (Farmer-to-Farmer Case Study Series)

In this series, explore innovative approaches regional farmers are using that may increase their resilience in the face of a changing climate.

OSU Extension Catalog

Dry Farming Project Continues to Expand!

Multiple Research Projects Engage with the Dry Farming Collaborative in 2018

By Amy Garrett, | Article

Scheduling Irrigation with a Pressure Chamber (Part 2)

Step by step instruction on how to use a pressure chamber as a tool to help you schedule irrigation in wine grape vineyards. Dr. Alexander Levin walks through the steps of using a pressure chamber to measure leaf water potential and stem water potential. Part 2 of 2

OSU Extension Catalog

Scheduling Irrigation with a Pressure Chamber (Part 1)

How to use a pressure chamber as a tool to help you schedule irrigation in wine grape vineyards. The two most important questions you need to answer for irrigation scheduling are “How much?” and “When?” The pressure chamber is an important tool that can be used to determine when you should irrigate....

OSU Extension Catalog