KTKA

In many places, the corn growing season got off to a cool, damp start. Those conditions may have given rise to what's known as cold-weather crown stress.

K-State Research and Extension row crop disease specialist Doug Jardine says affected plants often show unusual nutrient symptoms, such as being pot ash, phosphorous, or nitrogen deficient. He says they'll have an off-yellow color and typically be stunted.

At this point, there's nothing a producer can do to counter cold-weather crown stress. In terms of eventual yields, Jardine says drought stress in August would have a greater impact than a cool summer with timely rains.

The K-State Soil Testing Lab has updated its Web site to guide different customers, such as farmers, agronomists, homeowners and researchers, to their specific needs. Each customer now has a different pathway to submit a soil test or leaf analysis.

The site also has general information related to soil fertility and nutrient management. A publications section has also been added to help answer questions about fertilizer recommendations and applications, nutrient deficiency symptoms, and nutrient management. The easiest way to get to the Web site is through the Agronomy home page.

You can find more information at your local extension office.