To optimize yield, producers must try to use an optimum seeding rate, planting date, row spacing, etc. However, these factors are continually changing. For example, why are seeding rates increasing and planting dates becoming earlier? Find information here that addresses these questions and other topics that are important before and during planting.
Extension Newsletter Articles
Corn and Dry Soils at Planting-Looking ahead to 2012 Part I
Part II: Hybrid maturity changes?
Part III: Plant population changes?
Corn hybrids adjust to late planting dates (2011)
Wait to plant corn with forecast of impending cold spell (2011)
Updated planting date recommendations for Iowa (2010)
Planting date trends (2010)
Corn planting: Consider soil temperature and date
Hybrids adjust to delayed planting dates
Planting date considerations for corn following corn
Update on corn plant populations and seed costs
Seeding rates in relation to maximum yield and seed costs
Corn seeding rates and variable-rate seeding
Evaluate seeding rate relative to seed cost
Plant population considerations for corn following corn
Planter Speed and Uniformity
First step to achieving uniform plants (2011)
How does planter speed affect plant spacing?
Tillage not found to affect plant space uniformity
How to measure plant to plant spacing in corn
Accurate tools for measuring plant uniformity
USDA Prospective Plantings
USDA Crop Acreage Reports
USDA Weekly Weather & Crop Bulletin
USDA Crop Progress & Condition
Growing Degree Days
Soil Growing Degree Days