Vegetable production

Nitrogen Contribution of Winter Annual Cover Crops to Sweet Corn Production in Western Oregon (1994)

Report to the Oregon Processed Vegetable Commission

John Luna
OSU Dept. of Horticulture

There is an increasing interest among Oregon vegetable producers in the use of cover crops to improve soil quality, provide biologically fixed nitrogen to reduce fertilizer inputs, and reduce ground water contamination. Because of the cost associated with cover crop establishment and spring incorporation ($25-40/acre), the ability to account for N contribution from the cover crop and reduce fertilizer inputs could help offset the cover crop costs.

Objectives:

Green Bean Breeding

Objectives: Breed bush green beans for the western Oregon processing industry with:
 

  • Improved potential for high yields at favorable sieve sizes and dependability
  • Improved straightness, texture, and other quality factors
  • Develop easy picking and small pod strains of Blue Lake type
  • Resistance to white mold and root rot

Cauliflower Variety Observations (1994)

Report to the Oregon Processed Vegetable Commission

Jack Stang and Jim Baggett
OSU Dept of Horticulture

Objectives:

  1. Evaluate head quality, maturity time and total yield of promising cauliflower varieties in early and late plantings.
  2. Evaluate the response of Starbright Y to closer plant spacings; compare head yield and quality from multiple and once-over harvesting.
  3. Relate maturity times of selected cauliflower varieties to timing of curd initiation and time period between initiation and harvest.

Green Bean Breeding

Objectives: Breed bush green beans for the western Oregon processing industry with:

Improved potential for high yields at favorable sieve sizes and dependability.

Improved straightness, texture, and other quality factors.

Develop easy picking and small pod strains of Blue Lake type.

Resistance to white mold and root rot.

Vegetation Management in Sweet Corn

Objectives:

Evaluate herbicides with near term availability such as dimethenamid, acetochlor, and nicosulfuron for both weed control efficiency and effect on sweet corn growth.

Determine tolerance of sweet corn to propane flaming and efficiency of in-row weed control.

Evaluate impacts of cover crop residues and tillage systems on weed emergence.

Evaluate a novel planter design for planting in conventional and conservation tillage environments.