Soybeans Planted After Soybeans
If you are considering planting soybeans in 2018 on ground that was planted to soybeans in 2017, here are a few management considerations.
- Change soybean variety: individual products can vary significantly in their response to various diseases. For example, a variety with weak brown stem rot tolerance in 2017 will allow populations of the pathogen to build up. Disease may have gone unnoticed last year while setting up for a significant problem in 2018.
- Known your SCN number. It is worth your time and money to soil test for Soybean Cyst Nematode (SCN). If your field has a long history of soybean and high levels of SCN, it is extremely risky to plant consecutive years of soybeans if your numbers are in fact high. SCN can devastate yield especially in a dry summer.
- Sudden Death Syndrome, Brown Stem Rot, White Mold – these common diseases can be troublesome for soybean growers in a corn/soybean rotation. Back to back soybean crops planted on a field with a history of any of these pathogens can take disease pressure to a new level. Variety selection in your best option to combat these pests. Also, consider seed treatment options for SDS.
- Controlling Weeds – consider the weed pressure and past herbicide use. It would be wise to change herbicide mode of action for both pre-emerge and post-emerge herbicide programs. Be a good steward of the tools that still work well.
Any questions, please ask your Prairie Brand DSM or agronomist!
Soybean Product Manager