What method can help remediate soil compaction?

Tillage with residue serves as an effective method to remediate soil compaction because it helps to loosen compacted soil layers while also maintaining organic matter. When tillage is practiced, it breaks up the compacted soil structure, thereby improving aeration and infiltration of water. The inclusion of crop residue in this process is particularly beneficial as it promotes the development of soil structure, encourages microbial activity, and ultimately enhances soil health.

Applying high rates of nitrogen fertilizer primarily affects nutrient availability and does not address the physical state of the soil. Excessive irrigation can lead to further compaction by saturating the soil and causing it to become denser. Increasing crop density does not directly alleviate soil compaction; in fact, it may worsen compaction issues if the roots of the plants contribute to further pressure on the soil without improving its structure. Therefore, tillage with residue is the best option for remediating soil compaction as it effectively combines physical and biological soil management practices.