interseed machine going through V6 swcorn

Crop Rotation, Tillage, and Irrigation

Oregon is home to many fresh market and specialty seed farmers, growing a wide range of crops for wholesale and retail markets. Protecting that investment means doing things to give crops their best possible chance to grow. Crop rotation, tillage, and irrigation are important tools for weed management. These "reduced risk" strategies focus on ecosystems as a whole, and expose weak points in weed biology to increase success.

For a quick and up-to-date list of currently registered herbicide products in various cropping systems, consult the PNW Weed Management Handbook. It is updated quarterly, and is a valuable resource.  The handbook has a search function by crop, or active ingredient, and also provides information about non conventional methods of weed control practices.

View the Handbook

Horticultural Weed Control Reports

**NOTE: The resources listed here include work performed by faculty within the Oregon State University College of Agriculture, the Oregon Agricultural Experiment Station, the OSU Extension Service, and colleagues who cooperated from adjacent states along with local enterprises. The information contained within these reports is not intended nor authorized for publication. Interpretation of data is at the reader’s own risk and cannot be construed as recommendations for application of any herbicide or weed control practice.

HOW TO SEARCH:

Weed Management Research Reports are housed in OSU Library's Scholar's Archive (SA), an online repository of reports, theses & dissertations, and media. Each link provided below should guide you directly to the content you are looking for. From there, use the SA options to browse other items that may be of interest. For tips on browsing and searching SA visit: https://guides.library.oregonstate.edu/Scholars-Archive.

green onions being irrigated in a field