Scientists have found that most of the sediment entering the Tobacco Creek Watershed in Canada is coming from nature, not farms.

Some places have received significant rainfall over the summer and the last week, causing soil moisture to be high in some areas. Soil moisture content can lead to the threat for soil compaction.

This article highlights revisions to Iowa State University (ISU) soil-test interpretations and application guidelines for phosphorus (P), potassium (K) and lime in an update of extension publication PM 1688 "A General Guide for Crop Nutrient and Limestone Recommendations in Iowa."

Fall is an excellent time to test soil pH and determine whether any lime needs to be applied for future crops. Proper soil pH is important for nutrient availability, herbicide activity, and crop development. For most soils, additional lime is not needed every year. Consider these points before liming your fields:

The northwest Iowa fall survey of subsoil moisture completed by Iowa State University in November shows well below average amount of subsoil moisture.