Typically, purple corn leaves are automatically diagnosed as a phosphorus deficiency early in the spring. Although purple corn leaves are a symptom of phosphorus deficiency, this does not always mean there is a soil phosphorus deficiency per se. It could be that the plants are unable to access soil phosphorus due to problems with the root system, excess soil moisture, or cool temperatures.
Categories: Agronomy, Agronomy Talk
Tags: sidewall compaction, purple corn. phosphorus deficiency, corn root system
Recent scouting has show that the suboptimal planting conditions experienced in McLean County, Illinois are having some impact on the corn crops in the area. As corn approaches the V3 growth stage, I have found that populations are lower than what was planted due to issues with sidewall compaction.
Categories: E Central Illinois
Tags: corn, Chad Kalaher, Agronomy, Illinois Agronomy, sidewall compaction, low populations