When planting soybean as a double-crop after wheat, following some important management steps can help achieve a successful second crop. Residue management during the wheat harvest is the first step, followed by proper product selection and good weed management. Soil moisture and fertility can also help to achieve success.
Keeping a corn plant healthy and stress free during critical growth stages can help maximize yield potential. Understanding the significance of the growth stages and the effect of stress during any of the stages can help determine management decisions to improve overall plant health and protect yield potential.
Corn seed may be left in the field for a variety of reasons including harvest problems, poor stalk quality, or storm damage. On average, 23% of corn seed remaining in a field after harvest may germinate and become volunteer corn during the next growing season1. Controlling volunteer corn in corn may not be easy. Understanding the competitive effects of volunteers on corn yield can help in making control decisions. Management practices can also decrease the risk of volunteer corn problems.
Rootless corn syndrome, occasionally referred to as “floppy corn syndrome,” has been appearing in corn fields. What is causing this phenomenon, and what are the management implications? Now is the time for growers to evaluate their fields for root development issues.
Estimating N loss can help determine the amount of supplemental N needed to optimize yield potential.
Sidedress N applications are an option to apply N after planting corn.
Various management options are available to help prevent and/or control volunteer corn as well as remove an existing stand of corn in a replant situation. Proper removal of a poor stand of corn, before replanting to soybeans, is important to avoid volunteer corn competition. A recent Purdue University study showed a range of 10 to 41% reduction in soybean yield from early emerging volunteer corn densities of 0.5 to 16 plants/m2.1 Volunteer corn can lead to yield losses in both corn and soybean.
Corn seedlings can be clipped by black cutworm (BCW, Agrostis ipsilon) larvae, which can result in stand loss. To avoid stand loss from clipped seedlings, persistent scouting is needed to help determine if economic thresholds have been met. Management options include; planting Genuity® SmartStax® traits. Applying Acceleron® Seed Treatment Products, starting with a clean field, and utilizing insecticide rescue treatments.