richard.roseberg [at] oregonstate.edu

Office: 541-883-4590

Research interests include crop water use, irrigation, water and chemical movement through soil, macropore flow, water quality, and alternative crop evaluation and management in a semi-arid climate.

At OSU

Career Links:

Department of Crop and Soil Science

Klamath Basin Research and Extension Center

Crop Production

I can serve on graduate committees

Professional Accomplishments

Curriculum Vitae:

roseberg-richard.doc

My Awards

My Publications

Outreach and Extension

Extension Service Site Publications

(2023) OSU hemp crop production research update
(2022) What is the optimum spacing for hemp plants? What is the optimum number of hemp plants per acre? The answer depends on what it's being grown for. Fewer plants produce more prized colas or clusters of buds, while denser plantings yield more extractable cannabinoid.
(2020) Hemp Sex-Ed Hemp cultivation in Oregon is expanding, but growers need to be aware of the problems associated with unwanted pollination. Find out why it's vital that farmers coordinate with their neighbors to ensure a healthy hemp crop.
(2019) Basics of Fall Cover Cropping for Hemp in Oregon With careful management, cover crops can provide multiple benefits for hemp production systems.
(2019) What is Industrial Hemp? Industrial hemp was grown as a commodity crop for decades until it was banned in the mid-1930s. Congress decriminalized the crop in 2018, sparking interest in it among growers in Oregon, where hemp can be grown successfully. The plant's uses and restrictions, as well as many frequently asked questions, are outlined.
(2019) Soil, Seedbed Preparation and Seeding for Hemp Growers planting a successful commercial crop of hemp for seed, fiber, or resin will follow these guidelines for soil preparation, seeding, and irrigation.
(2018) Teff Grass for Forage: Nitrogen and irrigation requirements Teff is an ancient grain, made popular recently as more growers turn to teff for its high yields of high-quality hay. New research outlined here shows that teff requires less nitrogen fertilizer and irrigation water than comparable forage crops. Learn how much to apply and when to apply it.
(2019) Soft White Winter Wheat (Western Oregon) Nutrient Management Guide Gives nutrient and lime recommendations for soft white winter wheat in western Oregon. Also discusses: impact of diseases, such as take-all root rot, on crop yield; planting in poorly drained soil; soils and settings for wheat production; fall and spring nutrient management; and postharvest evaluation of nitrogen. Includes sources of further information and an overview of the history of related research in western Oregon.
(2021) Teff: A New Warm-Season Annual Grass for Oregon Describes characteristics and growing requirements of teff (Eragrostis tef [Zucc.], Poaceae) as a hay and forage crop in Oregon. Discusses hay quality and use; yields and varieties; and how to plant, fertilize, irrigate, cultivate, and harvest teff.