Tissue testing is an effective method for quantifying crop nutrient concentrations in-season and is becoming increasingly popular in soybeans as yield goals continue to rise. To ensure accurate nutrient analysis, it is critical to minimize errors associated with both tissue sample collection and resulting interpretation. Obtaining accurate results involves collecting the correct plant part under optimal field conditions with adequate soil moisture, while also considering nutrient mobility when interpreting the results. With these considerations, tissue testing can be a valuable tool in managing plant nutrition.

Straw is a valuable agricultural commodity that contains essential plant nutrients and contributes to soil organic matter. This publication explains how to estimate straw yield, quantify nutrient removal associated with baling, and calculate the fertilizer-equivalent value of straw based on current nutrient prices. It also discusses factors affecting straw production, the economic implications of straw removal, and soil health considerations related to maintaining crop residue in the field. The information provided can help producers make informed decisions about straw harvest and residue management.