Agronomy eUpdate April 10th, 2025

Issue 1048

Starter fertilizer for corn - Nitrogen placement and rate

Corn planting has started in some parts of Kansas. However, many areas are still waiting to get started. For producers considering applying a starter fertilizer at planting time, there are a few key considerations to remember. The proper placement and rate are crucial to avoid injury to the seed.

nitrogen corn fertilizer starter fertilizer phosphorus 

Pre-emergence herbicides for soybeans

Preemergence herbicides are the foundation of any excellent weed control program in soybeans. Using multiple effective residual herbicides is important to broaden the spectrum of controlled weeds, ensure herbicide activation in various environments, and guard against herbicide resistance.

soybeans weed control pre-plant herbicide pre-emergence residual herbicides 

Inoculating soybeans is a good insurance policy

When planting soybeans in Kansas, it may be a good insurance policy to inoculate the seed. As soybean yields increase, effective nodulation becomes more important. With higher yield goals for soybeans, inoculation is becoming a standard practice regardless of cropping history. Learn more in this article.

soybeans nitrogen inoculation nodulation 

Spring update on winter canola conditions

The 2024-2025 winter canola crop is gearing up for the race to the finish line. Recent observations indicate the majority of the crop survived the winter. However, with nearly all of Kansas under abnormally dry to moderate drought conditions, the most significant concern right now is timely precipitation.

canola winter canola 

Aphids in Kansas alfalfa: Species, damage, and treatment thresholds

Now that spring is here, it's a good time to review the various species of aphids that can cause problems in Kansas alfalfa fields. Identifying the aphids and signs of damage and knowing their treatment thresholds is important for making proper management decisions.

insects alfalfa pea aphids aphids 


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