First, look at how well water moves up and down the soil profile, says Farm Journal Field ... such as variable rate applications and creating management zones, can save farmers money and resources ...

The absence of a surplus results in incomplete leaching of the soil profile and the accumulation ... B horizon: Subsurface soil horizons that are zones of accumulation of soil constituents ...

Scientists have discovered a new phylum of microbes in the Earth's Critical Zone, an area of deep soil that restores water quality. Ground water, which becomes drinking water, passes through where ...