In this issue:

Updates from the field

• Temperature helps determine when to plant corn.
• Seeding rates depend on soil type and other variables.
• Shallow seed lead to problems.
• Corn has two kinds of roots.
• Do your homework if buying fungicide-treated seed.
• Insecticide seed treatments can help make the best of sub-optimal conditions.
• The USDA has announced cotton variety estimates.
• A new guide is out.
• Wheat fertilization can be a challenge.
• Computer tools can help make irrigation more efficient.