What is the best time of year to focus on crop selection & rotation for sorghum?

The best time to focus on crop selection and rotation planning for sorghum is during late fall to early winter, typically November through January, when the previous season's harvest data is available and before spring planting decisions must be finalized.

This timing allows farmers to analyze the performance of their current rotation system and make informed decisions based on soil test results, yield data, and market conditions. According to research from USDA Agricultural Research Service, planning rotations 4-6 months before planting enables optimal field preparation and input procurement.

The late fall planning period offers several strategic advantages for sorghum rotation decisions. Soil testing conducted after harvest provides accurate nutrient levels, helping determine which fields would benefit most from sorghum's nitrogen-efficient characteristics. Additionally, reviewing the previous season's pest and disease pressure helps identify fields where sorghum's natural resistance to certain corn pests makes it an ideal rotation choice.

Winter months provide adequate time to secure quality sorghum seed varieties suited to your specific growing conditions and market requirements. Grain sorghum varieties differ significantly in maturity dates, drought tolerance, and end-use applications, making early selection crucial for maximizing profitability.

For effective rotation planning, evaluate each field's three-year cropping history during this period. Sorghum works exceptionally well following soybeans due to residual nitrogen benefits, and it serves as an excellent rotation crop before corn to break pest cycles. Fields with heavy corn rootworm pressure particularly benefit from a sorghum rotation year.

Consider conducting soil compaction assessments during late fall when soil conditions allow proper evaluation. Sorghum's deep root system can help alleviate compaction issues in fields that have been in continuous row crops.

A practical example of effective timing: A Kansas farmer completes soil testing in November, analyzes yield maps in December, and finalizes sorghum acreage decisions by January 15th. This schedule allows adequate time to secure seed, arrange crop insurance, and plan field operations before spring fieldwork begins.

The planning period should also include evaluation of market contracts and storage options, as sorghum marketing strategies often differ from corn and soybeans. Early planning ensures access to the best pricing opportunities and delivery schedules.

Related: Crop Selection & Rotation · What soil conditions does sorghum require in Ohio? · What soil types work best for sorghum production in Ohio? · What are expert tips to optimize crop selection & rotation for rice in California?