As power plants across the country plan to close ash ponds, the first discharge limit to consider is pH. National standards require all wastewater discharges to comply with a pH between 6 and 9 ...
Some plants require soil to be acidic or alkaline in order to thrive. While you can buy a pH testing kit, this DIY method gives you an idea of what kind of soil you have, using two ingredients that ...
If you want your plants to grow big and healthy, soil quality matters. Even if you aren’t planning on growing a lush veggie garden, all plants need nutrients to grow, in addition to light and water.