Agronomy Talk

30

May

2014

Agronomy Update

NE Illinois and NW Indiana: Soybean Emergence Issues and Sulfur Deficiency in Corn

Author: Chad Kalaher

Soybean Emergence Issues
A large amount of soybeans were planted throughout the area May 7-12. Unfortunately, on May 14 the weather turned unseasonably cool and wet, with daily high temperatures only reaching the 50s for four consecutive days.

Sulfur Deficiency in Corn
Sulfur is an essential nutrient for crop production. Historically, however, sulfur has not been a common component of crop fertility programs. Sulfur has naturally been supplied through atmospheric deposition, manure application, and mineralization of organic matter.

Nitrification Inhibitors for Sidedressing Nitrogen (N)
Many growers are or will be sidedressing corn shortly. One question we often get this time of year is, “Do I use a nitrification inhibitor?” As is often the case, it is not an easy answer.

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1

May

2014

Agronomy Update

NE Illinois and NW Indiana: Predicting Corn Emergence and Soybean Inoculants

Author: Chad Kalaher

CORN PLANTING PROGRESS – Predicting Emergence
During April 10-12 corn planting was slow in isolated areas primarily near Springfield, IL followed by a cool, wet period. Planting resumed again April 17 in a general triangle that was formed by areas around Springfield, Bloomington and Champaign.

SOYBEAN INOCULANT
Part of the soybean high-yield equation includes the use of premium seed treatments. While Beck’s Escalate yield enhancement system is an industry-leading seed treatment combination of fungicides, insecticides, and growth promoter, Optimize® liquid inoculant was also offered on many varieties this year with the nematode control products VOTiVO® or Clariva™.

SOYBEAN SEEDING RATE
The proper soybean seeding rate has been a topic of discussion with growers, agronomists and university personnel for decades. Although final, consistent and uniform stands of 100,000-125,000 soybean plants/acre has generally been accepted to maximize economic return, many factors can influence the optimum seeding rate.

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