Knee High by When?

July 9, 2008

By Rich Pope, Department of Plant Pathology

Independence Day has come and gone, and scant acres of corn in most of Iowa have reached that old, outdated saw of knee high by the fourth of July. On my weekend trip to western Iowa, I saw corn ranging from V2 to VT! Admittedly, very little acreage was at either extreme, but it illustrates the continuing range of crop conditions that we will deal with through and after harvest this year.

Degree days accumulated during the first week of July were again slightly behind average. Because of crop plant’s limited root growth from the onslaught of the cool and wet conditions during the late spring, receiving timely rainfall will remain an ongoing issue through the remainder of the season.

Rich Pope is an extension specialist with responsibilities in the Corn and Soybean Initiative.
 

 

Links to this article are strongly encouraged, and this article may be republished without further permission if published as written and if credit is given to the author, Integrated Crop Management News, and Iowa State University Extension and Outreach. If this article is to be used in any other manner, permission from the author is required. This article was originally published on July 9, 2008. The information contained within may not be the most current and accurate depending on when it is accessed.

ICM News
Category: 
Crops: 
Author: