Today, turfgrass is the single largest irrigated crop in the United States and covers three times the land area of any other cultivated crop. An estimated 40.5 million acres of grasses are planted in residential, commercial and...
On-farm trials help growers test if promising experiment station research results can be replicated on their farms. However, these on-farm trials must be carefully planned to ensure the results are valid.
Christy Tanner, Gordon B. Jones, Betsy Verhoeven |
May 2023 |
Extension Catalog publicationPeer reviewed (Orange level)
Learn about the environmental factors that affect plant growth: light, temperature, water, humidity and nutrition. Either directly or indirectly, most plant problems are caused by environmental stress.
When a heatwave hits, plants may show the impact. Learn the signs of heat stress in plants and how to help them weather a heatwave with best practices for watering, mulching, shading, providing humidity and weeding.
Blueberries grow well in the Pacific Northwest. To get the most out of your bushes, it helps to understand the form and function of each part of the plant.
The June 2021 heat wave caused significant damage to trees in Oregon. Learn some key findings on causes, types of damage, physiological "thermotolerance" of trees, and possible forest management implications.
Damage assessments after the historic heat wave of June 2021 in Oregon provided lessons for the state's Christmas tree growers. Those assessments showed how damage varied by type of tree and location of farms.
Poisonous plants are a major cause of economic loss to the livestock industry. Two poisonous plants common to Oregon are poison hemlock and Western water hemlock. Ingestion of either by humans or livestock typically results in death.