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Don Fiechter
Uneven corn, growing points and hail recovery
Purdue has two great links this week on the growing point in corn and recovery from hail damage and ISU has a good blog article on uneven corn.
Issue: #49 June 4, 2007
Dear Clint,

This week, we look at nitrogen availability, current weed issues, insect reports and an update from Purdue on the growing point of corn.

Remember to check the agronomy article archives, as we are posting about 40 new agronomic articles every week on the website.

NOTE: There will be minimal agronomic updates on the website this week and there will NOT be a report next week due to the webmaster being overseas. Our next issue will be on Monday, June 18.
How much nitrogen is left?

Case Sprayer

Significant rainfall in parts of the corn belt over the past three weeks has many producers wondering how much of the nitrogen fertilizer they applied is still available to the crop.

Several factors can influence the amount of N loss, including rainfall amount and intensity, soil texture, soil temperature, fertilizer source and application date. Loss pathways can include runoff, ammonia volatilization, denitrification and leaching.

Here's what leading universities have to say on the subject:
Weed control issues
Case sprayerMany weed-related topics are highlighted in this week's university newsletters.
Midwest insect report
grape colaspisMany insect pests are attacking corn and soybean pests across the Midwest. Here's the reports from across the corn belt.

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