Testing can show whether your soil is out of balance with too much acid or alkaline. Adding limestone to raise pH or sulfur ...

Following best practices from previous federal post-wildfire soil-testing efforts, The Times collected samples from residential properties in Altadena and Pacific Palisades.

How do I collect a sample? Collect a slice or core of soil (4 inches deep for lawns, 6 to 8 inches deep for gardens) from 8 to 10 random locations across the lawn or garden.

For predictive sampling, use representative samples of an area. These can be collected following management zones in the field or by following a zig zag pattern through the field. For diagnostic ...

JUNEAU | Fall is the ideal time of year to conduct routine soil sampling of your cropland according to Kim Meyer, of the UW Extension Nutrient and Pest Management Program.