What do we know about heavy metals in soil? What do we know about lead exposure through soil and garden plants? What do we know about cadmium and arsenic in soils? What can I do if I’m at risk for heavy metals in my garden soil?
The study showed that the crop performed equally well with and without gypsum and nutritional samples of the hemp flowers did not indicate any problems by discontinuing applications.
This field guide describes in detail the steps woodland landowners would take to build a large pond on their properties. The guide describes the planning, permitting and construction of the pond, and includes ...
Drought has become a fact of life for farmers throughout the West. For hemp growers, careful planning for where, when and what to plant can result in a crop that will thrive despite dry conditions.
This publication recommends specific ways to manage sand-based fields, which will require more frequent fertilization, irrigation, and cultivation for proper maintenance than native soil fields.
Alec Kowalewski, Gwen K. Stahnke, Tom Cook, Roy Goss |
Sep 2015 |
Extension Catalog publicationPeer reviewed (Orange level)
Hemp plants are susceptible to disease, especially at the early stages of development. Hemp growers can promote healthy plants by using high-quality seed and avoiding soil that is wet, dense or poorly drained.
Sand-based, natural turfgrass and synthetic surfaces are the best options for athletic fields in the rainy Pacific Northwest. Compare the benefits and learn the construction component requirements to withstand the range of climatic conditions.
Alec Kowalewski, Gwen K. Stahnke, Tom Cook, Roy Goss |
Sep 2015 |
Extension Catalog publicationPeer reviewed (Orange level)
Photos by C. M. Ocamb (L) and H. Rivedal (R), Oregon State University. (Cropped from original)
Hemp canker and gray mold management includes cultural control practices to improve air circulation and minimize leaf wetness. Proper plant spacing, plant pruning and irrigation timing help accomplish this. If Sclerotinia is detected,...
Cynthia M. Ocamb |
Sep 2023 |
Article
Photo A by G. Shrestha; photos B and C by C.M. Ocamb, Oregon State University. (Cropped from original)
Hemp is susceptible to fungal pathogens that induce wilt disease that can kill plants. The fungi that cause the disease can survive for years and are easily spread. But there are steps growers can take to prevent it.