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.

Sweet Corn Variety Evaluation for the Treasure Valley

Objectives:
Sweet corn and supersweet corn varieties were evaluated for agronomic and processing performance.

Sweet Corn Variety Evaluation

Objectives:


To determine the production and processing potential of new introductions of sweet corn.

Nitrogen Management in Vegetable Crops and Their Rotations

PROJECT LEADERS: Delbert D. Hemphill, North Willamette R&E Center, Richard Dick and John Hart, Dept. of Crop & Soil Science

COOPERATORS: John Luna and N.S. Mansour, Dept. of Horticulture, John Selker, Dept. of Bioresources Engineering; Marvin Kauffman, Soil Scientist, Neil Christensen, Crop and Soil Science, and 16 vegetable growers

Vegetation Management in Sweet Corn

Objectives:

Evaluate Surpass (acetochlor), Frontier (dimethenamid), Tough (pyridate), and Accent (nicosulfuron), for weed control and crop tolerance, and develop appropriate weed control programs to minimize impact of atrazine tolerant weeds and proso millet.

Determine tolerance of sweet corn to propane flaming with emphasis on early postemergence applications.

Determine impact of cover crop residues on weed emergence, herbicide efficacy, and sweet corn growth in both minimum tillage and conventional tillage systems.

Sweet Corn Variety Evaluation

Objectives:
To determine the production and processing potential of new introductions of sweet corn.

Survey of corn fields in the Willamette Valley for stalk rot

PROJECT LEADERS: Mary L. Powelson, Robin Ludy and Virginia Heifer
Botany and Plant Pathology
Oregon State University
Corvallis, OR 97331-2902


COOPERATORS: Bill Mansour and Dan McGrath


OBJECTIVES: 1) Determine the distribution and severity of stalk rot of sweet corn in the Willamette Valley; 2) Determine which Fusarium species are most commonly associated with stalk rot; and 3) Conduct a crop history survey.

Supersweet and Sweet Corn Variety Evaluations

Clint Shock, Erik Feibert, Greg Willison and Monty Saunders
Malheur Experiment Station
Oregon State University
Ontario, Oregon, 1996

Objectives:
Sweet corn and supersweet corn varieties were evaluated for agronomic and processing performance.

Pre-sidedress Soil Nitrate Testing in Sweet Corn

 OBJECTIVES:
To evaluate the use of pre-sidedress testing of soil nitrate content (PSNT), leaf chlorophyll content, and leaf tissue N, to predict the level of additional N needed to grow the crop to good yield and quality.

Nitrogen Management in Sweet Corn

 PROJECT LEADERS: Delbert D. Hemphill, North Willamette R&E Center; Ernie Marx, John Hart, and
Richard Dick, Dept. of Crop and Soil Science


COOPERATORS: John Selker, Dept. of Bioresources Engineering; Neil Christensen and Peter
Bottomley, Dept. of Crop and Soil Science

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