Administrative Report Or Publication
 

Annual ryegrass (western Oregon) [2003]

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  • Annual ryegrass varieties such as ‘Gulf’ are grown for seed on poorly drained soils of the south Willamette Valley, including Dayton, Concord, and Bashaw. Recommendations in this guide are based on research throughout this production area. Management practices from seedbed preparation to harvest must be performed in an appropriate and timely manner for optimum annual ryegrass seed yield. Fertilizer is not a substitute for failure to control insects, diseases, or weeds. Excessive stand density, low soil pH, and/or poor drainage can be significant limiting factors in obtaining high seed yields. Increasing fertilizer rates or adding nutrients already in adequate supply will not correct these limiting factors.
  • Declared out of print November 2012. Revised December 2003. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
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file details FG_5-e_2003.pdf 2017-07-10 公开 下载