What should be added to soil to prevent minerals from leaching away?

Question

Quizplus · Accepted Answer

Humus is an organic material that helps hold onto minerals in the soil, preventing them from leaching away. It also improves soil structure, water retention, and nutrient availability for plants. Sand, silt, and nitrogen do not have the same ability to prevent mineral leaching. Mycorrhizae can help plants take up nutrients from the soil, but do not directly prevent mineral leaching.

What Should Be Added to Soil to Prevent Minerals from Leaching