Soybean plants on an Arkansas farm thrive on wheat crop leftovers, an example of no-till farming that conserves nutrients and reduces greenhouse gas emissions. Instead of plowing crops under, crop residue is left on top of the soil to decompose. Soil retains more nutrients, holds water, and better withstands erosion.

Studies have shown that no-till farming requires less labor, fuel and equipment. Conventional plowing releases large amounts of harmful gases, while no-till stores them in the soil. (NRCS)