You could call Dean Sponheim an accidental conservationist. Well, at least initially, anyway. In 1999, Sponheim was frustrated that every year he had to replant a big chunk of a field that wasn't well tiled. "I was looking for a system where I didn't have to work it in the spring," he said.

This year, there is a very high degree of variability across the state with regards to soybean height, canopy coverage and overall crop condition.

As we enter the soybean reproductive growth phase there are a few things to keep in mind. The first is that soybeans will produce flowers for around 3 to 5 weeks, depending upon planting date and environment.

As soybean planting wraps up, it's time to consider evaluating soybean stands. Planting conditions were not always ideal this year. Soil conditions were a little wet when planting started and now have turned fairly dry in most areas. Here are some points to keep in mind when evaluating soybean stand.

Early season weed control is imperative to maximize soybean yield. Many soybean growers were unable to apply pre-emergence, residual herbicides prior to soybean emergence.

A move to strip-tilling corn with a homemade unit was an efficient path to consistent yields for Illinois farmer Charlie Durdan.

Slow planting progress this spring has led to all efforts focused on getting the crop in the ground. Often the first operation thrown to the wayside is application of pre-emergence herbicides in soybean. A decade ago this practice could be successful, but with widespread multiple herbicide resistance, it either sets up an imminent control failure or contributes to further evolution of herbicide resistance.

Soybean is a crop that can remove significant amounts of nutrients per bushel of grain harvested. Because of this, soybeans can respond to starter fertilizer applications on low-testing soils, particularly phosphorus.

Soybean production is expanding. In some situations, the crop will be planted in fields that have never been planted to soybeans or haven't been planted to soybeans for more than four years. This article provides recommendations for planting soybeans under these conditions.

There has been a great deal of interest in recent months in the idea of using nitrogen fertilizer during the growing season to increase soybean yields.