Second, it enables farmers to gauge SCN presence in corn fields where soybeans will be planted in 2025, allowing them to take proactive measures for a successful yield.
Steps for SCN Sampling
- Sampling for SCN is straightforward and requires only a soil probe. Follow these steps:
- Use a soil probe and collect 15 to 20 soil cores from every 20 acres.
- Each core should reach a depth of around 8 inches.
- The more cores collected, the better the accuracy of results.
- Gather samples from agronomically similar areas in the field and combine them in a bucket.
- Mix soil cores well, then fill a labelled soil sample bag or plastic bag.
SCN samples do not need refrigeration; room temperature storage works fine. Samples can be sent to the ISU Plant and Insect Diagnostic Clinic or processed by private soil-testing labs.
Managing SCN for Healthier Soybean Crops
If SCN is detected, a multi-step approach is recommended. Farmers can plant SCN-resistant soybean varieties and alternate these with corn, a non-host crop. Additionally, nematode-protectant soybean seed treatments can provide extra protection.
Resources like soybeancyst.info and TheSCNCoalition.com offer further guidance on SCN biology and effective management strategies.
Fall soil sampling is a simple yet powerful tool for maintaining healthy crops and maximizing yield potential. By taking this proactive step, farmers can safeguard their soil and ensure robust soybean production for the upcoming season.