Effect of pop-up fertilizers and planting density on early season sweet corn growth and ear yield (2015)

Publication Date: 
Prices paid for sweet corn are low relative to the cost of producing the crop, and every strategy possible must be used to maximize net return. Two strategies used to enhance profitability but that have received little research attention under Western Oregon conditions are the use of pop-up fertilizers and increased plant populations. Despite indications that popup fertilizers improve early-season growth, concrete evidence that these fertilizers ultimately enhance growth and yield are often lacking. Seeding density also can be increased to improve crop yield up to a point, but intraspecific competitive ability and the competitive stress tolerance of varieties currently produced in the Willamette Valley has not been demonstrated.
CornReport_PlantingDesnity_Peachey_2015.pdf567.28 KB

Research report to the Oregon Processed Vegetable Commission

PI Ed Peachey
OSU Dept. of Horticulture

Co-PI Dan Sullivan
OSU Dept. of Crop and Soil Science


Oregon Processed Vegetable Commission, Processed Vegetable Production, Economics, Willamette Valley, Corn