Legume Crops in Low Precipitation Areas of the Pacific Northwest

1,319 views
1,103 views

Published on

2009 NACAA Organic Agriculture Super Seminar
Presenters: Brian Tuck, Oregon State University; Stephen Machado, Oregon State University

Published in: Education, Technology
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total views
1,319
On SlideShare
0
From Embeds
0
Number of Embeds
11
Actions
Shares
0
Downloads
17
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

Legume Crops in Low Precipitation Areas of the Pacific Northwest

  1. 1. Legume Crops In Low Precipitation Areas of the Pacific Northwest Brian Tuck, Oregon State University Stephen Machado, Oregon State University
  2. 2. No-Till, Reduced Till, Organic
  3. 3. Issues <ul><li>Winter Precipitation (10-14”) – Dryland SF </li></ul><ul><li>Dry Falls and Hot Dry Springs </li></ul><ul><li>Limited Irrigation </li></ul><ul><li>Few Alternatives – Monoculture </li></ul><ul><li>Wind & Water Erosion </li></ul>
  4. 4. Legume Rotation/Cover Crops <ul><li>Impact on wheat yields </li></ul><ul><li>Moisture use </li></ul><ul><li>Nitrogen Fixation </li></ul><ul><li>Pest Problems </li></ul>
  5. 5. <ul><li>Costs </li></ul><ul><li>Crop Value </li></ul><ul><li>Moisture </li></ul><ul><li>Limited Options </li></ul>Issues
  6. 6. <ul><li>Nebraska farmers. This field is an example of two rows of wheat spaced at 10 inches, leaving 20 inches for the soybean crop. </li></ul>Intercropping
  7. 7. Examples of Intercropping REGION INTERCROP North and North Central US wheat /grasses/ clover Northwestern region, west of the Cascade Range oats/red clover. Southern Oregon wheat/subterranean clover Willamette Valley in Oregon corn /sorghum for silage South Dakota corn, soybean, and spring wheat (alternating strips) Iowa strip-crops oats, corn, and soybean. Nebraska corn/wheat/soybean Parma, ID (Brown Bradford) relay cropping barley and corn Canada corn /soybeans for silage; barley, oats , or triticale are intercropped with clover
  8. 10. Legume Mixes (Yields, N, Soil Health) <ul><li>Winter Peas - mixes, varieties, planting rates, removal and grow out </li></ul><ul><li>Yield Increase - 12-33% (consistency) </li></ul><ul><li>Clovers, Hairy Vetch, Medic, Lentils… </li></ul>
  9. 13. <ul><li>N Fixation/Transfer </li></ul><ul><li>Soil Microflora </li></ul>
  10. 15. <ul><li>Hairy Vetch </li></ul><ul><li>Adapted </li></ul><ul><li>Winter Hardy </li></ul><ul><li>Purple Bounty </li></ul><ul><li>N Fixation - First Bloom </li></ul><ul><li>Nematode, Disease </li></ul><ul><li>Blends with Wheat </li></ul>
  11. 21. Questions??? Photo by John Aeschliman

×