Chemists in South Korea have created a stable color-changing sensor that displays an easily quantifiable response to the pH of its surroundings. Published in Microsystems & Nanoengineering, Dong-Hwan ...

Is wood ash good for your garden? It adds nutrients and raises soil pH. Apply it sparingly, use only untreated wood—and do a ...

Many seeds only require soil and water to sprout. Others, however, have a harder coating that makes germination a bit difficult.

Most gardeners think soil testing only determines nutrient deficiencies, but the tests also help gardeners understand whether the soil contains adequate nutrients. Basic tests check the soil’s ...