Fertilizers can enable farmers to grow the same crop in a ?eld for several years in a row. Farmers who use less fertilizer often rotate their crops by planting the crop one year and legumes, such as beans and clover, the following year. Fertilizer use and crop rotation with legumes both increase the availability of which of the following nutrients in soil?

Question

Quizplus · Accepted Answer

Legumes have the ability to fix atmospheric nitrogen into the soil through a symbiotic relationship with nitrogen-fixing bacteria in their root nodules. Fertilizers often contain nitrogen to promote plant growth. Both practices increase the availability of nitrogen in the soil.

Fertilizers Can Enable Farmers to Grow the Same Crop in a ?Eld